爬虫自动化之定制浏览器随机指纹

mkdir chromium && cd chromium  # 任意创建一个目录接收源码fetch chromium --no-history    # 拉取最新源码,不带--no-history则拉取完整源码gclient sync --no-history      # 因为网络缘故断开，使用这一句重新同步源码

源码拉取完毕之后，当前目录下会多出一个src目录，源码就位于其中。

cd src                        #进入目录gn gen --ide=vs out\Default          #在out\Default目录下生成工程文件autoninja -C out\build mini_installer#编译源码，编译后生成chrome.exe和一个chrome.7z压缩文件#如果不带mini_installer将会进行整体编译，将近10w个文件，非常耗时

编译完成后，进入out\Default目录下：

4.png

到此为止，chromium最新版源码编译成功。

3.如何抹除自动化特征

"nofollow noopener" href="https://bot.sannysoft.com/">指纹检测网站

5.png

如果要绕过一般的自动化检测网站，最迫切的就是要抹除webdriver这一特征检测，因为检测一般都是检测 window.navigator.webdriver 属性，明白了要抹除的是webdriver，第一步就已经完成了。

不过，一定会有问在杠，比如他知道可以使用其他方法，比如selenium调用execute_cdp_cmd  的方式抹除自动化特征云云，我知道，我确实知道，我也可以把要执行的抹除特征的JS代码放在这里：

/*!* Note: Auto-generated, do not update manually.* Generated by: https://github.com/berstend/puppeteer-extra/tree/master/packages/extract-stealth-evasions* Generated on: Sun, 13 Feb 2022 12:56:05 GMT* License: MIT*/(({_utilsFns: _utilsFns, _mainFunction: _mainFunction, _args: _args}) => {  const utils = Object.fromEntries(Object.entries(_utilsFns).map((([key, value]) => [key, eval(value)])));  utils.init(), eval(_mainFunction)(utils, ..._args)})({  _utilsFns: {    init: "() => {\n  utils.preloadCache()\n}",    stripProxyFromErrors: "(handler = {}) => {\n  const newHandler = {\n    setPrototypeOf: function (target, proto) {\n      if (proto === null)\n        throw new TypeError('Cannot convert object to primitive value')\n      if (Object.getPrototypeOf(target) === Object.getPrototypeOf(proto)) {\n        throw new TypeError('Cyclic __proto__ value')\n      }\n      return Reflect.setPrototypeOf(target, proto)\n    }\n  }\n  // We wrap each trap in the handler in a try/catch and modify the error stack if they throw\n  const traps = Object.getOwnPropertyNames(handler)\n  traps.forEach(trap => {\n    newHandler[trap] = function () {\n      try {\n        // Forward the call to the defined proxy handler\n        return handler[trap].apply(this, arguments || [])\n      } catch (err) {\n        // Stack traces differ per browser, we only support chromium based ones currently\n        if (!err || !err.stack || !err.stack.includes(`at `)) {\n          throw err\n        }\n\n        // When something throws within one of our traps the Proxy will show up in error stacks\n        // An earlier implementation of this code would simply strip lines with a blacklist,\n        // but it makes sense to be more surgical here and only remove lines related to our Proxy.\n        // We try to use a known \"anchor\" line for that and strip it with everything above it.\n        // If the anchor line cannot be found for some reason we fall back to our blacklist approach.\n\n        const stripWithBlacklist = (stack, stripFirstLine = true) => {\n          const blacklist = [\n            `at Reflect.${trap} `, // e.g. Reflect.get or Reflect.apply\n            `at Object.${trap} `, // e.g. Object.get or Object.apply\n            `at Object.newHandler.<computed> [as ${trap}] ` // caused by this very wrapper :-)\n          ]\n          return (\n            err.stack\n              .split('\\n')\n              // Always remove the first (file) line in the stack (guaranteed to be our proxy)\n              .filter((line, index) => !(index === 1 && stripFirstLine))\n              // Check if the line starts with one of our blacklisted strings\n              .filter(line => !blacklist.some(bl => line.trim().startsWith(bl)))\n              .join('\\n')\n          )\n        }\n\n        const stripWithAnchor = (stack, anchor) => {\n          const stackArr = stack.split('\\n')\n          anchor = anchor || `at Object.newHandler.<computed> [as ${trap}] ` // Known first Proxy line in chromium\n          const anchorIndex = stackArr.findIndex(line =>\n            line.trim().startsWith(anchor)\n          )\n          if (anchorIndex === -1) {\n            return false // 404, anchor not found\n          }\n          // Strip everything from the top until we reach the anchor line\n          // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n          stackArr.splice(1, anchorIndex)\n          return stackArr.join('\\n')\n        }\n\n        // Special cases due to our nested toString proxies\n        err.stack = err.stack.replace(\n          'at Object.toString (',\n          'at Function.toString ('\n        )\n        if ((err.stack || '').includes('at Function.toString (')) {\n          err.stack = stripWithBlacklist(err.stack, false)\n          throw err\n        }\n\n        // Try using the anchor method, fallback to blacklist if necessary\n        err.stack = stripWithAnchor(err.stack) || stripWithBlacklist(err.stack)\n\n        throw err // Re-throw our now sanitized error\n      }\n    }\n  })\n  return newHandler\n}",    stripErrorWithAnchor: "(err, anchor) => {\n  const stackArr = err.stack.split('\\n')\n  const anchorIndex = stackArr.findIndex(line => line.trim().startsWith(anchor))\n  if (anchorIndex === -1) {\n    return err // 404, anchor not found\n  }\n  // Strip everything from the top until we reach the anchor line (remove anchor line as well)\n  // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n  stackArr.splice(1, anchorIndex)\n  err.stack = stackArr.join('\\n')\n  return err\n}",    replaceProperty: "(obj, propName, descriptorOverrides = {}) => {\n  return Object.defineProperty(obj, propName, {\n    // Copy over the existing descriptors (writable, enumerable, configurable, etc)\n    ...(Object.getOwnPropertyDescriptor(obj, propName) || {}),\n    // Add our overrides (e.g. value, get())\n    ...descriptorOverrides\n  })\n}",    preloadCache: "() => {\n  if (utils.cache) {\n    return\n  }\n  utils.cache = {\n    // Used in our proxies\n    Reflect: {\n      get: Reflect.get.bind(Reflect),\n      apply: Reflect.apply.bind(Reflect)\n    },\n    // Used in `makeNativeString`\n    nativeToStringStr: Function.toString + '' // => `function toString() { [native code] }`\n  }\n}",    makeNativeString: "(name = '') => {\n  return utils.cache.nativeToStringStr.replace('toString', name || '')\n}",    patchToString: "(obj, str = '') => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n      // `toString` targeted at our proxied Object detected\n      if (ctx === obj) {\n        // We either return the optional string verbatim or derive the most desired result automatically\n        return str || utils.makeNativeString(obj.name)\n      }\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    patchToStringNested: "(obj = {}) => {\n  return utils.execRecursively(obj, ['function'], utils.patchToString)\n}",    redirectToString: "(proxyObj, originalObj) => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n\n      // `toString` targeted at our proxied Object detected\n      if (ctx === proxyObj) {\n        const fallback = () =>\n          originalObj && originalObj.name\n            ? utils.makeNativeString(originalObj.name)\n            : utils.makeNativeString(proxyObj.name)\n\n        // Return the toString representation of our original object if possible\n        return originalObj + '' || fallback()\n      }\n\n      if (typeof ctx === 'undefined' || ctx === null) {\n        return target.call(ctx)\n      }\n\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    replaceWithProxy: "(obj, propName, handler) => {\n  const originalObj = obj[propName]\n  const proxyObj = new Proxy(obj[propName], utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.redirectToString(proxyObj, originalObj)\n\n  return true\n}",    replaceGetterWithProxy: "(obj, propName, handler) => {\n  const fn = Object.getOwnPropertyDescriptor(obj, propName).get\n  const fnStr = fn.toString() // special getter function string\n  const proxyObj = new Proxy(fn, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { get: proxyObj })\n  utils.patchToString(proxyObj, fnStr)\n\n  return true\n}",    mockWithProxy: "(obj, propName, pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.patchToString(proxyObj)\n\n  return true\n}",    createProxy: "(pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n  utils.patchToString(proxyObj)\n\n  return proxyObj\n}",    splitObjPath: "objPath => ({\n  // Remove last dot entry (property) ==> `HTMLMediaElement.prototype`\n  objName: objPath.split('.').slice(0, -1).join('.'),\n  // Extract last dot entry ==> `canPlayType`\n  propName: objPath.split('.').slice(-1)[0]\n})",    replaceObjPathWithProxy: "(objPath, handler) => {\n  const { objName, propName } = utils.splitObjPath(objPath)\n  const obj = eval(objName) // eslint-disable-line no-eval\n  return utils.replaceWithProxy(obj, propName, handler)\n}",    execRecursively: "(obj = {}, typeFilter = [], fn) => {\n  function recurse(obj) {\n    for (const key in obj) {\n      if (obj[key] === undefined) {\n        continue\n      }\n      if (obj[key] && typeof obj[key] === 'object') {\n        recurse(obj[key])\n      } else {\n        if (obj[key] && typeFilter.includes(typeof obj[key])) {\n          fn.call(this, obj[key])\n        }\n      }\n    }\n  }\n  recurse(obj)\n  return obj\n}",    stringifyFns: "(fnObj = { hello: () => 'world' }) => {\n  // Object.fromEntries() ponyfill (in 6 lines) - supported only in Node v12+, modern browsers are fine\n  // https://github.com/feross/fromentries\n  function fromEntries(iterable) {\n    return [...iterable].reduce((obj, [key, val]) => {\n      obj[key] = val\n      return obj\n    }, {})\n  }\n  return (Object.fromEntries || fromEntries)(\n    Object.entries(fnObj)\n      .filter(([key, value]) => typeof value === 'function')\n      .map(([key, value]) => [key, value.toString()]) // eslint-disable-line no-eval\n  )\n}",    materializeFns: "(fnStrObj = { hello: \"() => 'world'\" }) => {\n  return Object.fromEntries(\n    Object.entries(fnStrObj).map(([key, value]) => {\n      if (value.startsWith('function')) {\n        // some trickery is needed to make oldschool functions work :-)\n        return [key, eval(`() => ${value}`)()] // eslint-disable-line no-eval\n      } else {\n        // arrow functions just work\n        return [key, eval(value)] // eslint-disable-line no-eval\n      }\n    })\n  )\n}",    makeHandler: "() => ({\n  // Used by simple `navigator` getter evasions\n  getterValue: value => ({\n    apply(target, ctx, args) {\n      // Let's fetch the value first, to trigger and escalate potential errors\n      // Illegal invocations like `navigator.__proto__.vendor` will throw here\n      utils.cache.Reflect.apply(...arguments)\n      return value\n    }\n  })\n})"  },  _mainFunction: 'utils => {\n      if (!window.chrome) {\n        // Use the exact property descriptor found in headful Chrome\n        // fetch it via `Object.getOwnPropertyDescriptor(window, \'chrome\')`\n        Object.defineProperty(window, \'chrome\', {\n          writable: true,\n          enumerable: true,\n          configurable: false, // note!\n          value: {} // We\'ll extend that later\n        })\n      }\n\n      // That means we\'re running headful and don\'t need to mock anything\n      if (\'app\' in window.chrome) {\n        return // Nothing to do here\n      }\n\n      const makeError = {\n        ErrorInInvocation: fn => {\n          const err = new TypeError(`Error in invocation of app.${fn}()`)\n          return utils.stripErrorWithAnchor(\n            err,\n            `at ${fn} (eval at <anonymous>`\n          )\n        }\n      }\n\n      // There\'s a some static data in that property which doesn\'t seem to change,\n      // we should periodically check for updates: `JSON.stringify(window.app, null, 2)`\n      const STATIC_DATA = JSON.parse(\n        `\n{\n  "isInstalled": false,\n  "InstallState": {\n    "DISABLED": "disabled",\n    "INSTALLED": "installed",\n    "NOT_INSTALLED": "not_installed"\n  },\n  "RunningState": {\n    "CANNOT_RUN": "cannot_run",\n    "READY_TO_RUN": "ready_to_run",\n    "RUNNING": "running"\n  }\n}\n        `.trim()\n      )\n\n      window.chrome.app = {\n        ...STATIC_DATA,\n\n        get isInstalled() {\n          return false\n        },\n\n        getDetails: function getDetails() {\n          if (arguments.length) {\n            throw makeError.ErrorInInvocation(`getDetails`)\n          }\n          return null\n        },\n        getIsInstalled: function getDetails() {\n          if (arguments.length) {\n            throw makeError.ErrorInInvocation(`getIsInstalled`)\n          }\n          return false\n        },\n        runningState: function getDetails() {\n          if (arguments.length) {\n            throw makeError.ErrorInInvocation(`runningState`)\n          }\n          return \'cannot_run\'\n        }\n      }\n      utils.patchToStringNested(window.chrome.app)\n    }',  _args: []}), (({_utilsFns: _utilsFns, _mainFunction: _mainFunction, _args: _args}) => {  const utils = Object.fromEntries(Object.entries(_utilsFns).map((([key, value]) => [key, eval(value)])));  utils.init(), eval(_mainFunction)(utils, ..._args)})({  _utilsFns: {    init: "() => {\n  utils.preloadCache()\n}",    stripProxyFromErrors: "(handler = {}) => {\n  const newHandler = {\n    setPrototypeOf: function (target, proto) {\n      if (proto === null)\n        throw new TypeError('Cannot convert object to primitive value')\n      if (Object.getPrototypeOf(target) === Object.getPrototypeOf(proto)) {\n        throw new TypeError('Cyclic __proto__ value')\n      }\n      return Reflect.setPrototypeOf(target, proto)\n    }\n  }\n  // We wrap each trap in the handler in a try/catch and modify the error stack if they throw\n  const traps = Object.getOwnPropertyNames(handler)\n  traps.forEach(trap => {\n    newHandler[trap] = function () {\n      try {\n        // Forward the call to the defined proxy handler\n        return handler[trap].apply(this, arguments || [])\n      } catch (err) {\n        // Stack traces differ per browser, we only support chromium based ones currently\n        if (!err || !err.stack || !err.stack.includes(`at `)) {\n          throw err\n        }\n\n        // When something throws within one of our traps the Proxy will show up in error stacks\n        // An earlier implementation of this code would simply strip lines with a blacklist,\n        // but it makes sense to be more surgical here and only remove lines related to our Proxy.\n        // We try to use a known \"anchor\" line for that and strip it with everything above it.\n        // If the anchor line cannot be found for some reason we fall back to our blacklist approach.\n\n        const stripWithBlacklist = (stack, stripFirstLine = true) => {\n          const blacklist = [\n            `at Reflect.${trap} `, // e.g. Reflect.get or Reflect.apply\n            `at Object.${trap} `, // e.g. Object.get or Object.apply\n            `at Object.newHandler.<computed> [as ${trap}] ` // caused by this very wrapper :-)\n          ]\n          return (\n            err.stack\n              .split('\\n')\n              // Always remove the first (file) line in the stack (guaranteed to be our proxy)\n              .filter((line, index) => !(index === 1 && stripFirstLine))\n              // Check if the line starts with one of our blacklisted strings\n              .filter(line => !blacklist.some(bl => line.trim().startsWith(bl)))\n              .join('\\n')\n          )\n        }\n\n        const stripWithAnchor = (stack, anchor) => {\n          const stackArr = stack.split('\\n')\n          anchor = anchor || `at Object.newHandler.<computed> [as ${trap}] ` // Known first Proxy line in chromium\n          const anchorIndex = stackArr.findIndex(line =>\n            line.trim().startsWith(anchor)\n          )\n          if (anchorIndex === -1) {\n            return false // 404, anchor not found\n          }\n          // Strip everything from the top until we reach the anchor line\n          // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n          stackArr.splice(1, anchorIndex)\n          return stackArr.join('\\n')\n        }\n\n        // Special cases due to our nested toString proxies\n        err.stack = err.stack.replace(\n          'at Object.toString (',\n          'at Function.toString ('\n        )\n        if ((err.stack || '').includes('at Function.toString (')) {\n          err.stack = stripWithBlacklist(err.stack, false)\n          throw err\n        }\n\n        // Try using the anchor method, fallback to blacklist if necessary\n        err.stack = stripWithAnchor(err.stack) || stripWithBlacklist(err.stack)\n\n        throw err // Re-throw our now sanitized error\n      }\n    }\n  })\n  return newHandler\n}",    stripErrorWithAnchor: "(err, anchor) => {\n  const stackArr = err.stack.split('\\n')\n  const anchorIndex = stackArr.findIndex(line => line.trim().startsWith(anchor))\n  if (anchorIndex === -1) {\n    return err // 404, anchor not found\n  }\n  // Strip everything from the top until we reach the anchor line (remove anchor line as well)\n  // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n  stackArr.splice(1, anchorIndex)\n  err.stack = stackArr.join('\\n')\n  return err\n}",    replaceProperty: "(obj, propName, descriptorOverrides = {}) => {\n  return Object.defineProperty(obj, propName, {\n    // Copy over the existing descriptors (writable, enumerable, configurable, etc)\n    ...(Object.getOwnPropertyDescriptor(obj, propName) || {}),\n    // Add our overrides (e.g. value, get())\n    ...descriptorOverrides\n  })\n}",    preloadCache: "() => {\n  if (utils.cache) {\n    return\n  }\n  utils.cache = {\n    // Used in our proxies\n    Reflect: {\n      get: Reflect.get.bind(Reflect),\n      apply: Reflect.apply.bind(Reflect)\n    },\n    // Used in `makeNativeString`\n    nativeToStringStr: Function.toString + '' // => `function toString() { [native code] }`\n  }\n}",    makeNativeString: "(name = '') => {\n  return utils.cache.nativeToStringStr.replace('toString', name || '')\n}",    patchToString: "(obj, str = '') => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n      // `toString` targeted at our proxied Object detected\n      if (ctx === obj) {\n        // We either return the optional string verbatim or derive the most desired result automatically\n        return str || utils.makeNativeString(obj.name)\n      }\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    patchToStringNested: "(obj = {}) => {\n  return utils.execRecursively(obj, ['function'], utils.patchToString)\n}",    redirectToString: "(proxyObj, originalObj) => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n\n      // `toString` targeted at our proxied Object detected\n      if (ctx === proxyObj) {\n        const fallback = () =>\n          originalObj && originalObj.name\n            ? utils.makeNativeString(originalObj.name)\n            : utils.makeNativeString(proxyObj.name)\n\n        // Return the toString representation of our original object if possible\n        return originalObj + '' || fallback()\n      }\n\n      if (typeof ctx === 'undefined' || ctx === null) {\n        return target.call(ctx)\n      }\n\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    replaceWithProxy: "(obj, propName, handler) => {\n  const originalObj = obj[propName]\n  const proxyObj = new Proxy(obj[propName], utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.redirectToString(proxyObj, originalObj)\n\n  return true\n}",    replaceGetterWithProxy: "(obj, propName, handler) => {\n  const fn = Object.getOwnPropertyDescriptor(obj, propName).get\n  const fnStr = fn.toString() // special getter function string\n  const proxyObj = new Proxy(fn, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { get: proxyObj })\n  utils.patchToString(proxyObj, fnStr)\n\n  return true\n}",    mockWithProxy: "(obj, propName, pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.patchToString(proxyObj)\n\n  return true\n}",    createProxy: "(pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n  utils.patchToString(proxyObj)\n\n  return proxyObj\n}",    splitObjPath: "objPath => ({\n  // Remove last dot entry (property) ==> `HTMLMediaElement.prototype`\n  objName: objPath.split('.').slice(0, -1).join('.'),\n  // Extract last dot entry ==> `canPlayType`\n  propName: objPath.split('.').slice(-1)[0]\n})",    replaceObjPathWithProxy: "(objPath, handler) => {\n  const { objName, propName } = utils.splitObjPath(objPath)\n  const obj = eval(objName) // eslint-disable-line no-eval\n  return utils.replaceWithProxy(obj, propName, handler)\n}",    execRecursively: "(obj = {}, typeFilter = [], fn) => {\n  function recurse(obj) {\n    for (const key in obj) {\n      if (obj[key] === undefined) {\n        continue\n      }\n      if (obj[key] && typeof obj[key] === 'object') {\n        recurse(obj[key])\n      } else {\n        if (obj[key] && typeFilter.includes(typeof obj[key])) {\n          fn.call(this, obj[key])\n        }\n      }\n    }\n  }\n  recurse(obj)\n  return obj\n}",    stringifyFns: "(fnObj = { hello: () => 'world' }) => {\n  // Object.fromEntries() ponyfill (in 6 lines) - supported only in Node v12+, modern browsers are fine\n  // https://github.com/feross/fromentries\n  function fromEntries(iterable) {\n    return [...iterable].reduce((obj, [key, val]) => {\n      obj[key] = val\n      return obj\n    }, {})\n  }\n  return (Object.fromEntries || fromEntries)(\n    Object.entries(fnObj)\n      .filter(([key, value]) => typeof value === 'function')\n      .map(([key, value]) => [key, value.toString()]) // eslint-disable-line no-eval\n  )\n}",    materializeFns: "(fnStrObj = { hello: \"() => 'world'\" }) => {\n  return Object.fromEntries(\n    Object.entries(fnStrObj).map(([key, value]) => {\n      if (value.startsWith('function')) {\n        // some trickery is needed to make oldschool functions work :-)\n        return [key, eval(`() => ${value}`)()] // eslint-disable-line no-eval\n      } else {\n        // arrow functions just work\n        return [key, eval(value)] // eslint-disable-line no-eval\n      }\n    })\n  )\n}",    makeHandler: "() => ({\n  // Used by simple `navigator` getter evasions\n  getterValue: value => ({\n    apply(target, ctx, args) {\n      // Let's fetch the value first, to trigger and escalate potential errors\n      // Illegal invocations like `navigator.__proto__.vendor` will throw here\n      utils.cache.Reflect.apply(...arguments)\n      return value\n    }\n  })\n})"  },  _mainFunction: "utils => {\n      if (!window.chrome) {\n        // Use the exact property descriptor found in headful Chrome\n        // fetch it via `Object.getOwnPropertyDescriptor(window, 'chrome')`\n        Object.defineProperty(window, 'chrome', {\n          writable: true,\n          enumerable: true,\n          configurable: false, // note!\n          value: {} // We'll extend that later\n        })\n      }\n\n      // That means we're running headful and don't need to mock anything\n      if ('csi' in window.chrome) {\n        return // Nothing to do here\n      }\n\n      // Check that the Navigation Timing API v1 is available, we need that\n      if (!window.performance || !window.performance.timing) {\n        return\n      }\n\n      const { timing } = window.performance\n\n      window.chrome.csi = function() {\n        return {\n          onloadT: timing.domContentLoadedEventEnd,\n          startE: timing.navigationStart,\n          pageT: Date.now() - timing.navigationStart,\n          tran: 15 // Transition type or something\n        }\n      }\n      utils.patchToString(window.chrome.csi)\n    }",  _args: []}), (({_utilsFns: _utilsFns, _mainFunction: _mainFunction, _args: _args}) => {  const utils = Object.fromEntries(Object.entries(_utilsFns).map((([key, value]) => [key, eval(value)])));  utils.init(), eval(_mainFunction)(utils, ..._args)})({  _utilsFns: {    init: "() => {\n  utils.preloadCache()\n}",    stripProxyFromErrors: "(handler = {}) => {\n  const newHandler = {\n    setPrototypeOf: function (target, proto) {\n      if (proto === null)\n        throw new TypeError('Cannot convert object to primitive value')\n      if (Object.getPrototypeOf(target) === Object.getPrototypeOf(proto)) {\n        throw new TypeError('Cyclic __proto__ value')\n      }\n      return Reflect.setPrototypeOf(target, proto)\n    }\n  }\n  // We wrap each trap in the handler in a try/catch and modify the error stack if they throw\n  const traps = Object.getOwnPropertyNames(handler)\n  traps.forEach(trap => {\n    newHandler[trap] = function () {\n      try {\n        // Forward the call to the defined proxy handler\n        return handler[trap].apply(this, arguments || [])\n      } catch (err) {\n        // Stack traces differ per browser, we only support chromium based ones currently\n        if (!err || !err.stack || !err.stack.includes(`at `)) {\n          throw err\n        }\n\n        // When something throws within one of our traps the Proxy will show up in error stacks\n        // An earlier implementation of this code would simply strip lines with a blacklist,\n        // but it makes sense to be more surgical here and only remove lines related to our Proxy.\n        // We try to use a known \"anchor\" line for that and strip it with everything above it.\n        // If the anchor line cannot be found for some reason we fall back to our blacklist approach.\n\n        const stripWithBlacklist = (stack, stripFirstLine = true) => {\n          const blacklist = [\n            `at Reflect.${trap} `, // e.g. Reflect.get or Reflect.apply\n            `at Object.${trap} `, // e.g. Object.get or Object.apply\n            `at Object.newHandler.<computed> [as ${trap}] ` // caused by this very wrapper :-)\n          ]\n          return (\n            err.stack\n              .split('\\n')\n              // Always remove the first (file) line in the stack (guaranteed to be our proxy)\n              .filter((line, index) => !(index === 1 && stripFirstLine))\n              // Check if the line starts with one of our blacklisted strings\n              .filter(line => !blacklist.some(bl => line.trim().startsWith(bl)))\n              .join('\\n')\n          )\n        }\n\n        const stripWithAnchor = (stack, anchor) => {\n          const stackArr = stack.split('\\n')\n          anchor = anchor || `at Object.newHandler.<computed> [as ${trap}] ` // Known first Proxy line in chromium\n          const anchorIndex = stackArr.findIndex(line =>\n            line.trim().startsWith(anchor)\n          )\n          if (anchorIndex === -1) {\n            return false // 404, anchor not found\n          }\n          // Strip everything from the top until we reach the anchor line\n          // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n          stackArr.splice(1, anchorIndex)\n          return stackArr.join('\\n')\n        }\n\n        // Special cases due to our nested toString proxies\n        err.stack = err.stack.replace(\n          'at Object.toString (',\n          'at Function.toString ('\n        )\n        if ((err.stack || '').includes('at Function.toString (')) {\n          err.stack = stripWithBlacklist(err.stack, false)\n          throw err\n        }\n\n        // Try using the anchor method, fallback to blacklist if necessary\n        err.stack = stripWithAnchor(err.stack) || stripWithBlacklist(err.stack)\n\n        throw err // Re-throw our now sanitized error\n      }\n    }\n  })\n  return newHandler\n}",    stripErrorWithAnchor: "(err, anchor) => {\n  const stackArr = err.stack.split('\\n')\n  const anchorIndex = stackArr.findIndex(line => line.trim().startsWith(anchor))\n  if (anchorIndex === -1) {\n    return err // 404, anchor not found\n  }\n  // Strip everything from the top until we reach the anchor line (remove anchor line as well)\n  // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n  stackArr.splice(1, anchorIndex)\n  err.stack = stackArr.join('\\n')\n  return err\n}",    replaceProperty: "(obj, propName, descriptorOverrides = {}) => {\n  return Object.defineProperty(obj, propName, {\n    // Copy over the existing descriptors (writable, enumerable, configurable, etc)\n    ...(Object.getOwnPropertyDescriptor(obj, propName) || {}),\n    // Add our overrides (e.g. value, get())\n    ...descriptorOverrides\n  })\n}",    preloadCache: "() => {\n  if (utils.cache) {\n    return\n  }\n  utils.cache = {\n    // Used in our proxies\n    Reflect: {\n      get: Reflect.get.bind(Reflect),\n      apply: Reflect.apply.bind(Reflect)\n    },\n    // Used in `makeNativeString`\n    nativeToStringStr: Function.toString + '' // => `function toString() { [native code] }`\n  }\n}",    makeNativeString: "(name = '') => {\n  return utils.cache.nativeToStringStr.replace('toString', name || '')\n}",    patchToString: "(obj, str = '') => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n      // `toString` targeted at our proxied Object detected\n      if (ctx === obj) {\n        // We either return the optional string verbatim or derive the most desired result automatically\n        return str || utils.makeNativeString(obj.name)\n      }\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    patchToStringNested: "(obj = {}) => {\n  return utils.execRecursively(obj, ['function'], utils.patchToString)\n}",    redirectToString: "(proxyObj, originalObj) => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n\n      // `toString` targeted at our proxied Object detected\n      if (ctx === proxyObj) {\n        const fallback = () =>\n          originalObj && originalObj.name\n            ? utils.makeNativeString(originalObj.name)\n            : utils.makeNativeString(proxyObj.name)\n\n        // Return the toString representation of our original object if possible\n        return originalObj + '' || fallback()\n      }\n\n      if (typeof ctx === 'undefined' || ctx === null) {\n        return target.call(ctx)\n      }\n\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    replaceWithProxy: "(obj, propName, handler) => {\n  const originalObj = obj[propName]\n  const proxyObj = new Proxy(obj[propName], utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.redirectToString(proxyObj, originalObj)\n\n  return true\n}",    replaceGetterWithProxy: "(obj, propName, handler) => {\n  const fn = Object.getOwnPropertyDescriptor(obj, propName).get\n  const fnStr = fn.toString() // special getter function string\n  const proxyObj = new Proxy(fn, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { get: proxyObj })\n  utils.patchToString(proxyObj, fnStr)\n\n  return true\n}",    mockWithProxy: "(obj, propName, pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.patchToString(proxyObj)\n\n  return true\n}",    createProxy: "(pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n  utils.patchToString(proxyObj)\n\n  return proxyObj\n}",    splitObjPath: "objPath => ({\n  // Remove last dot entry (property) ==> `HTMLMediaElement.prototype`\n  objName: objPath.split('.').slice(0, -1).join('.'),\n  // Extract last dot entry ==> `canPlayType`\n  propName: objPath.split('.').slice(-1)[0]\n})",    replaceObjPathWithProxy: "(objPath, handler) => {\n  const { objName, propName } = utils.splitObjPath(objPath)\n  const obj = eval(objName) // eslint-disable-line no-eval\n  return utils.replaceWithProxy(obj, propName, handler)\n}",    execRecursively: "(obj = {}, typeFilter = [], fn) => {\n  function recurse(obj) {\n    for (const key in obj) {\n      if (obj[key] === undefined) {\n        continue\n      }\n      if (obj[key] && typeof obj[key] === 'object') {\n        recurse(obj[key])\n      } else {\n        if (obj[key] && typeFilter.includes(typeof obj[key])) {\n          fn.call(this, obj[key])\n        }\n      }\n    }\n  }\n  recurse(obj)\n  return obj\n}",    stringifyFns: "(fnObj = { hello: () => 'world' }) => {\n  // Object.fromEntries() ponyfill (in 6 lines) - supported only in Node v12+, modern browsers are fine\n  // https://github.com/feross/fromentries\n  function fromEntries(iterable) {\n    return [...iterable].reduce((obj, [key, val]) => {\n      obj[key] = val\n      return obj\n    }, {})\n  }\n  return (Object.fromEntries || fromEntries)(\n    Object.entries(fnObj)\n      .filter(([key, value]) => typeof value === 'function')\n      .map(([key, value]) => [key, value.toString()]) // eslint-disable-line no-eval\n  )\n}",    materializeFns: "(fnStrObj = { hello: \"() => 'world'\" }) => {\n  return Object.fromEntries(\n    Object.entries(fnStrObj).map(([key, value]) => {\n      if (value.startsWith('function')) {\n        // some trickery is needed to make oldschool functions work :-)\n        return [key, eval(`() => ${value}`)()] // eslint-disable-line no-eval\n      } else {\n        // arrow functions just work\n        return [key, eval(value)] // eslint-disable-line no-eval\n      }\n    })\n  )\n}",    makeHandler: "() => ({\n  // Used by simple `navigator` getter evasions\n  getterValue: value => ({\n    apply(target, ctx, args) {\n      // Let's fetch the value first, to trigger and escalate potential errors\n      // Illegal invocations like `navigator.__proto__.vendor` will throw here\n      utils.cache.Reflect.apply(...arguments)\n      return value\n    }\n  })\n})"  },  _mainFunction: "(utils, { opts }) => {\n        if (!window.chrome) {\n          // Use the exact property descriptor found in headful Chrome\n          // fetch it via `Object.getOwnPropertyDescriptor(window, 'chrome')`\n          Object.defineProperty(window, 'chrome', {\n            writable: true,\n            enumerable: true,\n            configurable: false, // note!\n            value: {} // We'll extend that later\n          })\n        }\n\n        // That means we're running headful and don't need to mock anything\n        if ('loadTimes' in window.chrome) {\n          return // Nothing to do here\n        }\n\n        // Check that the Navigation Timing API v1 + v2 is available, we need that\n        if (\n          !window.performance ||\n          !window.performance.timing ||\n          !window.PerformancePaintTiming\n        ) {\n          return\n        }\n\n        const { performance } = window\n\n        // Some stuff is not available on about:blank as it requires a navigation to occur,\n        // let's harden the code to not fail then:\n        const ntEntryFallback = {\n          nextHopProtocol: 'h2',\n          type: 'other'\n        }\n\n        // The API exposes some funky info regarding the connection\n        const protocolInfo = {\n          get connectionInfo() {\n            const ntEntry =\n              performance.getEntriesByType('navigation')[0] || ntEntryFallback\n            return ntEntry.nextHopProtocol\n          },\n          get npnNegotiatedProtocol() {\n            // NPN is deprecated in favor of ALPN, but this implementation returns the\n            // HTTP/2 or HTTP2+QUIC/39 requests negotiated via ALPN.\n            const ntEntry =\n              performance.getEntriesByType('navigation')[0] || ntEntryFallback\n            return ['h2', 'hq'].includes(ntEntry.nextHopProtocol)\n              ? ntEntry.nextHopProtocol\n              : 'unknown'\n          },\n          get navigationType() {\n            const ntEntry =\n              performance.getEntriesByType('navigation')[0] || ntEntryFallback\n            return ntEntry.type\n          },\n          get wasAlternateProtocolAvailable() {\n            // The Alternate-Protocol header is deprecated in favor of Alt-Svc\n            // (https://www.mnot.net/blog/2016/03/09/alt-svc), so technically this\n            // should always return false.\n            return false\n          },\n          get wasFetchedViaSpdy() {\n            // SPDY is deprecated in favor of HTTP/2, but this implementation returns\n            // true for HTTP/2 or HTTP2+QUIC/39 as well.\n            const ntEntry =\n              performance.getEntriesByType('navigation')[0] || ntEntryFallback\n            return ['h2', 'hq'].includes(ntEntry.nextHopProtocol)\n          },\n          get wasNpnNegotiated() {\n            // NPN is deprecated in favor of ALPN, but this implementation returns true\n            // for HTTP/2 or HTTP2+QUIC/39 requests negotiated via ALPN.\n            const ntEntry =\n              performance.getEntriesByType('navigation')[0] || ntEntryFallback\n            return ['h2', 'hq'].includes(ntEntry.nextHopProtocol)\n          }\n        }\n\n        const { timing } = window.performance\n\n        // Truncate number to specific number of decimals, most of the `loadTimes` stuff has 3\n        function toFixed(num, fixed) {\n          var re = new RegExp('^-?\\\\d+(?:.\\\\d{0,' + (fixed || -1) + '})?')\n          return num.toString().match(re)[0]\n        }\n\n        const timingInfo = {\n          get firstPaintAfterLoadTime() {\n            // This was never actually implemented and always returns 0.\n            return 0\n          },\n          get requestTime() {\n            return timing.navigationStart / 1000\n          },\n          get startLoadTime() {\n            return timing.navigationStart / 1000\n          },\n          get commitLoadTime() {\n            return timing.responseStart / 1000\n          },\n          get finishDocumentLoadTime() {\n            return timing.domContentLoadedEventEnd / 1000\n          },\n          get finishLoadTime() {\n            return timing.loadEventEnd / 1000\n          },\n          get firstPaintTime() {\n            const fpEntry = performance.getEntriesByType('paint')[0] || {\n              startTime: timing.loadEventEnd / 1000 // Fallback if no navigation occured (`about:blank`)\n            }\n            return toFixed(\n              (fpEntry.startTime + performance.timeOrigin) / 1000,\n              3\n            )\n          }\n        }\n\n        window.chrome.loadTimes = function() {\n          return {\n            ...protocolInfo,\n            ...timingInfo\n          }\n        }\n        utils.patchToString(window.chrome.loadTimes)\n      }",  _args: [{opts: {}}]}), (({_utilsFns: _utilsFns, _mainFunction: _mainFunction, _args: _args}) => {  const utils = Object.fromEntries(Object.entries(_utilsFns).map((([key, value]) => [key, eval(value)])));  utils.init(), eval(_mainFunction)(utils, ..._args)})({  _utilsFns: {    init: "() => {\n  utils.preloadCache()\n}",    stripProxyFromErrors: "(handler = {}) => {\n  const newHandler = {\n    setPrototypeOf: function (target, proto) {\n      if (proto === null)\n        throw new TypeError('Cannot convert object to primitive value')\n      if (Object.getPrototypeOf(target) === Object.getPrototypeOf(proto)) {\n        throw new TypeError('Cyclic __proto__ value')\n      }\n      return Reflect.setPrototypeOf(target, proto)\n    }\n  }\n  // We wrap each trap in the handler in a try/catch and modify the error stack if they throw\n  const traps = Object.getOwnPropertyNames(handler)\n  traps.forEach(trap => {\n    newHandler[trap] = function () {\n      try {\n        // Forward the call to the defined proxy handler\n        return handler[trap].apply(this, arguments || [])\n      } catch (err) {\n        // Stack traces differ per browser, we only support chromium based ones currently\n        if (!err || !err.stack || !err.stack.includes(`at `)) {\n          throw err\n        }\n\n        // When something throws within one of our traps the Proxy will show up in error stacks\n        // An earlier implementation of this code would simply strip lines with a blacklist,\n        // but it makes sense to be more surgical here and only remove lines related to our Proxy.\n        // We try to use a known \"anchor\" line for that and strip it with everything above it.\n        // If the anchor line cannot be found for some reason we fall back to our blacklist approach.\n\n        const stripWithBlacklist = (stack, stripFirstLine = true) => {\n          const blacklist = [\n            `at Reflect.${trap} `, // e.g. Reflect.get or Reflect.apply\n            `at Object.${trap} `, // e.g. Object.get or Object.apply\n            `at Object.newHandler.<computed> [as ${trap}] ` // caused by this very wrapper :-)\n          ]\n          return (\n            err.stack\n              .split('\\n')\n              // Always remove the first (file) line in the stack (guaranteed to be our proxy)\n              .filter((line, index) => !(index === 1 && stripFirstLine))\n              // Check if the line starts with one of our blacklisted strings\n              .filter(line => !blacklist.some(bl => line.trim().startsWith(bl)))\n              .join('\\n')\n          )\n        }\n\n        const stripWithAnchor = (stack, anchor) => {\n          const stackArr = stack.split('\\n')\n          anchor = anchor || `at Object.newHandler.<computed> [as ${trap}] ` // Known first Proxy line in chromium\n          const anchorIndex = stackArr.findIndex(line =>\n            line.trim().startsWith(anchor)\n          )\n          if (anchorIndex === -1) {\n            return false // 404, anchor not found\n          }\n          // Strip everything from the top until we reach the anchor line\n          // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n          stackArr.splice(1, anchorIndex)\n          return stackArr.join('\\n')\n        }\n\n        // Special cases due to our nested toString proxies\n        err.stack = err.stack.replace(\n          'at Object.toString (',\n          'at Function.toString ('\n        )\n        if ((err.stack || '').includes('at Function.toString (')) {\n          err.stack = stripWithBlacklist(err.stack, false)\n          throw err\n        }\n\n        // Try using the anchor method, fallback to blacklist if necessary\n        err.stack = stripWithAnchor(err.stack) || stripWithBlacklist(err.stack)\n\n        throw err // Re-throw our now sanitized error\n      }\n    }\n  })\n  return newHandler\n}",    stripErrorWithAnchor: "(err, anchor) => {\n  const stackArr = err.stack.split('\\n')\n  const anchorIndex = stackArr.findIndex(line => line.trim().startsWith(anchor))\n  if (anchorIndex === -1) {\n    return err // 404, anchor not found\n  }\n  // Strip everything from the top until we reach the anchor line (remove anchor line as well)\n  // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n  stackArr.splice(1, anchorIndex)\n  err.stack = stackArr.join('\\n')\n  return err\n}",    replaceProperty: "(obj, propName, descriptorOverrides = {}) => {\n  return Object.defineProperty(obj, propName, {\n    // Copy over the existing descriptors (writable, enumerable, configurable, etc)\n    ...(Object.getOwnPropertyDescriptor(obj, propName) || {}),\n    // Add our overrides (e.g. value, get())\n    ...descriptorOverrides\n  })\n}",    preloadCache: "() => {\n  if (utils.cache) {\n    return\n  }\n  utils.cache = {\n    // Used in our proxies\n    Reflect: {\n      get: Reflect.get.bind(Reflect),\n      apply: Reflect.apply.bind(Reflect)\n    },\n    // Used in `makeNativeString`\n    nativeToStringStr: Function.toString + '' // => `function toString() { [native code] }`\n  }\n}",    makeNativeString: "(name = '') => {\n  return utils.cache.nativeToStringStr.replace('toString', name || '')\n}",    patchToString: "(obj, str = '') => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n      // `toString` targeted at our proxied Object detected\n      if (ctx === obj) {\n        // We either return the optional string verbatim or derive the most desired result automatically\n        return str || utils.makeNativeString(obj.name)\n      }\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    patchToStringNested: "(obj = {}) => {\n  return utils.execRecursively(obj, ['function'], utils.patchToString)\n}",    redirectToString: "(proxyObj, originalObj) => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n\n      // `toString` targeted at our proxied Object detected\n      if (ctx === proxyObj) {\n        const fallback = () =>\n          originalObj && originalObj.name\n            ? utils.makeNativeString(originalObj.name)\n            : utils.makeNativeString(proxyObj.name)\n\n        // Return the toString representation of our original object if possible\n        return originalObj + '' || fallback()\n      }\n\n      if (typeof ctx === 'undefined' || ctx === null) {\n        return target.call(ctx)\n      }\n\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    replaceWithProxy: "(obj, propName, handler) => {\n  const originalObj = obj[propName]\n  const proxyObj = new Proxy(obj[propName], utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.redirectToString(proxyObj, originalObj)\n\n  return true\n}",    replaceGetterWithProxy: "(obj, propName, handler) => {\n  const fn = Object.getOwnPropertyDescriptor(obj, propName).get\n  const fnStr = fn.toString() // special getter function string\n  const proxyObj = new Proxy(fn, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { get: proxyObj })\n  utils.patchToString(proxyObj, fnStr)\n\n  return true\n}",    mockWithProxy: "(obj, propName, pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.patchToString(proxyObj)\n\n  return true\n}",    createProxy: "(pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n  utils.patchToString(proxyObj)\n\n  return proxyObj\n}",    splitObjPath: "objPath => ({\n  // Remove last dot entry (property) ==> `HTMLMediaElement.prototype`\n  objName: objPath.split('.').slice(0, -1).join('.'),\n  // Extract last dot entry ==> `canPlayType`\n  propName: objPath.split('.').slice(-1)[0]\n})",    replaceObjPathWithProxy: "(objPath, handler) => {\n  const { objName, propName } = utils.splitObjPath(objPath)\n  const obj = eval(objName) // eslint-disable-line no-eval\n  return utils.replaceWithProxy(obj, propName, handler)\n}",    execRecursively: "(obj = {}, typeFilter = [], fn) => {\n  function recurse(obj) {\n    for (const key in obj) {\n      if (obj[key] === undefined) {\n        continue\n      }\n      if (obj[key] && typeof obj[key] === 'object') {\n        recurse(obj[key])\n      } else {\n        if (obj[key] && typeFilter.includes(typeof obj[key])) {\n          fn.call(this, obj[key])\n        }\n      }\n    }\n  }\n  recurse(obj)\n  return obj\n}",    stringifyFns: "(fnObj = { hello: () => 'world' }) => {\n  // Object.fromEntries() ponyfill (in 6 lines) - supported only in Node v12+, modern browsers are fine\n  // https://github.com/feross/fromentries\n  function fromEntries(iterable) {\n    return [...iterable].reduce((obj, [key, val]) => {\n      obj[key] = val\n      return obj\n    }, {})\n  }\n  return (Object.fromEntries || fromEntries)(\n    Object.entries(fnObj)\n      .filter(([key, value]) => typeof value === 'function')\n      .map(([key, value]) => [key, value.toString()]) // eslint-disable-line no-eval\n  )\n}",    materializeFns: "(fnStrObj = { hello: \"() => 'world'\" }) => {\n  return Object.fromEntries(\n    Object.entries(fnStrObj).map(([key, value]) => {\n      if (value.startsWith('function')) {\n        // some trickery is needed to make oldschool functions work :-)\n        return [key, eval(`() => ${value}`)()] // eslint-disable-line no-eval\n      } else {\n        // arrow functions just work\n        return [key, eval(value)] // eslint-disable-line no-eval\n      }\n    })\n  )\n}",    makeHandler: "() => ({\n  // Used by simple `navigator` getter evasions\n  getterValue: value => ({\n    apply(target, ctx, args) {\n      // Let's fetch the value first, to trigger and escalate potential errors\n      // Illegal invocations like `navigator.__proto__.vendor` will throw here\n      utils.cache.Reflect.apply(...arguments)\n      return value\n    }\n  })\n})"  },  _mainFunction: "(utils, { opts, STATIC_DATA }) => {\n        if (!window.chrome) {\n          // Use the exact property descriptor found in headful Chrome\n          // fetch it via `Object.getOwnPropertyDescriptor(window, 'chrome')`\n          Object.defineProperty(window, 'chrome', {\n            writable: true,\n            enumerable: true,\n            configurable: false, // note!\n            value: {} // We'll extend that later\n          })\n        }\n\n        // That means we're running headful and don't need to mock anything\n        const existsAlready = 'runtime' in window.chrome\n        // `chrome.runtime` is only exposed on secure origins\n        const isNotSecure = !window.location.protocol.startsWith('https')\n        if (existsAlready || (isNotSecure && !opts.runOnInsecureOrigins)) {\n          return // Nothing to do here\n        }\n\n        window.chrome.runtime = {\n          // There's a bunch of static data in that property which doesn't seem to change,\n          // we should periodically check for updates: `JSON.stringify(window.chrome.runtime, null, 2)`\n          ...STATIC_DATA,\n          // `chrome.runtime.id` is extension related and returns undefined in Chrome\n          get id() {\n            return undefined\n          },\n          // These two require more sophisticated mocks\n          connect: null,\n          sendMessage: null\n        }\n\n        const makeCustomRuntimeErrors = (preamble, method, extensionId) => ({\n          NoMatchingSignature: new TypeError(\n            preamble + `No matching signature.`\n          ),\n          MustSpecifyExtensionID: new TypeError(\n            preamble +\n              `${method} called from a webpage must specify an Extension ID (string) for its first argument.`\n          ),\n          InvalidExtensionID: new TypeError(\n            preamble + `Invalid extension id: '${extensionId}'`\n          )\n        })\n\n        // Valid Extension IDs are 32 characters in length and use the letter `a` to `p`:\n        // https://source.chromium.org/chromium/chromium/src/+/master:components/crx_file/id_util.cc;drc=14a055ccb17e8c8d5d437fe080faba4c6f07beac;l=90\n        const isValidExtensionID = str =>\n          str.length === 32 && str.toLowerCase().match(/^[a-p]+$/)\n\n        /** Mock `chrome.runtime.sendMessage` */\n        const sendMessageHandler = {\n          apply: function(target, ctx, args) {\n            const [extensionId, options, responseCallback] = args || []\n\n            // Define custom errors\n            const errorPreamble = `Error in invocation of runtime.sendMessage(optional string extensionId, any message, optional object options, optional function responseCallback): `\n            const Errors = makeCustomRuntimeErrors(\n              errorPreamble,\n              `chrome.runtime.sendMessage()`,\n              extensionId\n            )\n\n            // Check if the call signature looks ok\n            const noArguments = args.length === 0\n            const tooManyArguments = args.length > 4\n            const incorrectOptions = options && typeof options !== 'object'\n            const incorrectResponseCallback =\n              responseCallback && typeof responseCallback !== 'function'\n            if (\n              noArguments ||\n              tooManyArguments ||\n              incorrectOptions ||\n              incorrectResponseCallback\n            ) {\n              throw Errors.NoMatchingSignature\n            }\n\n            // At least 2 arguments are required before we even validate the extension ID\n            if (args.length < 2) {\n              throw Errors.MustSpecifyExtensionID\n            }\n\n            // Now let's make sure we got a string as extension ID\n            if (typeof extensionId !== 'string') {\n              throw Errors.NoMatchingSignature\n            }\n\n            if (!isValidExtensionID(extensionId)) {\n              throw Errors.InvalidExtensionID\n            }\n\n            return undefined // Normal behavior\n          }\n        }\n        utils.mockWithProxy(\n          window.chrome.runtime,\n          'sendMessage',\n          function sendMessage() {},\n          sendMessageHandler\n        )\n\n        /**\n         * Mock `chrome.runtime.connect`\n         *\n         * home.php?mod=space&uid=2660 https://developer.chrome.com/apps/runtime#method-connect\n         */\n        const connectHandler = {\n          apply: function(target, ctx, args) {\n            const [extensionId, connectInfo] = args || []\n\n            // Define custom errors\n            const errorPreamble = `Error in invocation of runtime.connect(optional string extensionId, optional object connectInfo): `\n            const Errors = makeCustomRuntimeErrors(\n              errorPreamble,\n              `chrome.runtime.connect()`,\n              extensionId\n            )\n\n            // Behavior differs a bit from sendMessage:\n            const noArguments = args.length === 0\n            const emptyStringArgument = args.length === 1 && extensionId === ''\n            if (noArguments || emptyStringArgument) {\n              throw Errors.MustSpecifyExtensionID\n            }\n\n            const tooManyArguments = args.length > 2\n            const incorrectConnectInfoType =\n              connectInfo && typeof connectInfo !== 'object'\n\n            if (tooManyArguments || incorrectConnectInfoType) {\n              throw Errors.NoMatchingSignature\n            }\n\n            const extensionIdIsString = typeof extensionId === 'string'\n            if (extensionIdIsString && extensionId === '') {\n              throw Errors.MustSpecifyExtensionID\n            }\n            if (extensionIdIsString && !isValidExtensionID(extensionId)) {\n              throw Errors.InvalidExtensionID\n            }\n\n            // There's another edge-case here: extensionId is optional so we might find a connectInfo object as first param, which we need to validate\n            const validateConnectInfo = ci => {\n              // More than a first param connectInfo as been provided\n              if (args.length > 1) {\n                throw Errors.NoMatchingSignature\n              }\n              // An empty connectInfo has been provided\n              if (Object.keys(ci).length === 0) {\n                throw Errors.MustSpecifyExtensionID\n              }\n              // Loop over all connectInfo props an check them\n              Object.entries(ci).forEach(([k, v]) => {\n                const isExpected = ['name', 'includeTlsChannelId'].includes(k)\n                if (!isExpected) {\n                  throw new TypeError(\n                    errorPreamble + `Unexpected property: '${k}'.`\n                  )\n                }\n                const MismatchError = (propName, expected, found) =>\n                  TypeError(\n                    errorPreamble +\n                      `Error at property '${propName}': Invalid type: expected ${expected}, found ${found}.`\n                  )\n                if (k === 'name' && typeof v !== 'string') {\n                  throw MismatchError(k, 'string', typeof v)\n                }\n                if (k === 'includeTlsChannelId' && typeof v !== 'boolean') {\n                  throw MismatchError(k, 'boolean', typeof v)\n                }\n              })\n            }\n            if (typeof extensionId === 'object') {\n              validateConnectInfo(extensionId)\n              throw Errors.MustSpecifyExtensionID\n            }\n\n            // Unfortunately even when the connect fails Chrome will return an object with methods we need to mock as well\n            return utils.patchToStringNested(makeConnectResponse())\n          }\n        }\n        utils.mockWithProxy(\n          window.chrome.runtime,\n          'connect',\n          function connect() {},\n          connectHandler\n        )\n\n        function makeConnectResponse() {\n          const onSomething = () => ({\n            addListener: function addListener() {},\n            dispatch: function dispatch() {},\n            hasListener: function hasListener() {},\n            hasListeners: function hasListeners() {\n              return false\n            },\n            removeListener: function removeListener() {}\n          })\n\n          const response = {\n            name: '',\n            sender: undefined,\n            disconnect: function disconnect() {},\n            onDisconnect: onSomething(),\n            onMessage: onSomething(),\n            postMessage: function postMessage() {\n              if (!arguments.length) {\n                throw new TypeError(`Insufficient number of arguments.`)\n              }\n              throw new Error(`Attempting to use a disconnected port object`)\n            }\n          }\n          return response\n        }\n      }",  _args: [{    opts: {runOnInsecureOrigins: !1},    STATIC_DATA: {      OnInstalledReason: {        CHROME_UPDATE: "chrome_update",        INSTALL: "install",        SHARED_MODULE_UPDATE: "shared_module_update",        UPDATE: "update"      },      OnRestartRequiredReason: {APP_UPDATE: "app_update", OS_UPDATE: "os_update", PERIODIC: "periodic"},      PlatformArch: {        ARM: "arm",        ARM64: "arm64",        MIPS: "mips",        MIPS64: "mips64",        X86_32: "x86-32",        X86_64: "x86-64"      },      PlatformNaclArch: {ARM: "arm", MIPS: "mips", MIPS64: "mips64", X86_32: "x86-32", X86_64: "x86-64"},      PlatformOs: {ANDROID: "android", CROS: "cros", LINUX: "linux", MAC: "mac", OPENBSD: "openbsd", WIN: "win"},      RequestUpdateCheckStatus: {        NO_UPDATE: "no_update",        THROTTLED: "throttled",        UPDATE_AVAILABLE: "update_available"      }    }  }]}), (({_utilsFns: _utilsFns, _mainFunction: _mainFunction, _args: _args}) => {  const utils = Object.fromEntries(Object.entries(_utilsFns).map((([key, value]) => [key, eval(value)])));  utils.init(), eval(_mainFunction)(utils, ..._args)})({  _utilsFns: {    init: "() => {\n  utils.preloadCache()\n}",    stripProxyFromErrors: "(handler = {}) => {\n  const newHandler = {\n    setPrototypeOf: function (target, proto) {\n      if (proto === null)\n        throw new TypeError('Cannot convert object to primitive value')\n      if (Object.getPrototypeOf(target) === Object.getPrototypeOf(proto)) {\n        throw new TypeError('Cyclic __proto__ value')\n      }\n      return Reflect.setPrototypeOf(target, proto)\n    }\n  }\n  // We wrap each trap in the handler in a try/catch and modify the error stack if they throw\n  const traps = Object.getOwnPropertyNames(handler)\n  traps.forEach(trap => {\n    newHandler[trap] = function () {\n      try {\n        // Forward the call to the defined proxy handler\n        return handler[trap].apply(this, arguments || [])\n      } catch (err) {\n        // Stack traces differ per browser, we only support chromium based ones currently\n        if (!err || !err.stack || !err.stack.includes(`at `)) {\n          throw err\n        }\n\n        // When something throws within one of our traps the Proxy will show up in error stacks\n        // An earlier implementation of this code would simply strip lines with a blacklist,\n        // but it makes sense to be more surgical here and only remove lines related to our Proxy.\n        // We try to use a known \"anchor\" line for that and strip it with everything above it.\n        // If the anchor line cannot be found for some reason we fall back to our blacklist approach.\n\n        const stripWithBlacklist = (stack, stripFirstLine = true) => {\n          const blacklist = [\n            `at Reflect.${trap} `, // e.g. Reflect.get or Reflect.apply\n            `at Object.${trap} `, // e.g. Object.get or Object.apply\n            `at Object.newHandler.<computed> [as ${trap}] ` // caused by this very wrapper :-)\n          ]\n          return (\n            err.stack\n              .split('\\n')\n              // Always remove the first (file) line in the stack (guaranteed to be our proxy)\n              .filter((line, index) => !(index === 1 && stripFirstLine))\n              // Check if the line starts with one of our blacklisted strings\n              .filter(line => !blacklist.some(bl => line.trim().startsWith(bl)))\n              .join('\\n')\n          )\n        }\n\n        const stripWithAnchor = (stack, anchor) => {\n          const stackArr = stack.split('\\n')\n          anchor = anchor || `at Object.newHandler.<computed> [as ${trap}] ` // Known first Proxy line in chromium\n          const anchorIndex = stackArr.findIndex(line =>\n            line.trim().startsWith(anchor)\n          )\n          if (anchorIndex === -1) {\n            return false // 404, anchor not found\n          }\n          // Strip everything from the top until we reach the anchor line\n          // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n          stackArr.splice(1, anchorIndex)\n          return stackArr.join('\\n')\n        }\n\n        // Special cases due to our nested toString proxies\n        err.stack = err.stack.replace(\n          'at Object.toString (',\n          'at Function.toString ('\n        )\n        if ((err.stack || '').includes('at Function.toString (')) {\n          err.stack = stripWithBlacklist(err.stack, false)\n          throw err\n        }\n\n        // Try using the anchor method, fallback to blacklist if necessary\n        err.stack = stripWithAnchor(err.stack) || stripWithBlacklist(err.stack)\n\n        throw err // Re-throw our now sanitized error\n      }\n    }\n  })\n  return newHandler\n}",    stripErrorWithAnchor: "(err, anchor) => {\n  const stackArr = err.stack.split('\\n')\n  const anchorIndex = stackArr.findIndex(line => line.trim().startsWith(anchor))\n  if (anchorIndex === -1) {\n    return err // 404, anchor not found\n  }\n  // Strip everything from the top until we reach the anchor line (remove anchor line as well)\n  // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n  stackArr.splice(1, anchorIndex)\n  err.stack = stackArr.join('\\n')\n  return err\n}",    replaceProperty: "(obj, propName, descriptorOverrides = {}) => {\n  return Object.defineProperty(obj, propName, {\n    // Copy over the existing descriptors (writable, enumerable, configurable, etc)\n    ...(Object.getOwnPropertyDescriptor(obj, propName) || {}),\n    // Add our overrides (e.g. value, get())\n    ...descriptorOverrides\n  })\n}",    preloadCache: "() => {\n  if (utils.cache) {\n    return\n  }\n  utils.cache = {\n    // Used in our proxies\n    Reflect: {\n      get: Reflect.get.bind(Reflect),\n      apply: Reflect.apply.bind(Reflect)\n    },\n    // Used in `makeNativeString`\n    nativeToStringStr: Function.toString + '' // => `function toString() { [native code] }`\n  }\n}",    makeNativeString: "(name = '') => {\n  return utils.cache.nativeToStringStr.replace('toString', name || '')\n}",    patchToString: "(obj, str = '') => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n      // `toString` targeted at our proxied Object detected\n      if (ctx === obj) {\n        // We either return the optional string verbatim or derive the most desired result automatically\n        return str || utils.makeNativeString(obj.name)\n      }\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    patchToStringNested: "(obj = {}) => {\n  return utils.execRecursively(obj, ['function'], utils.patchToString)\n}",    redirectToString: "(proxyObj, originalObj) => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n\n      // `toString` targeted at our proxied Object detected\n      if (ctx === proxyObj) {\n        const fallback = () =>\n          originalObj && originalObj.name\n            ? utils.makeNativeString(originalObj.name)\n            : utils.makeNativeString(proxyObj.name)\n\n        // Return the toString representation of our original object if possible\n        return originalObj + '' || fallback()\n      }\n\n      if (typeof ctx === 'undefined' || ctx === null) {\n        return target.call(ctx)\n      }\n\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    replaceWithProxy: "(obj, propName, handler) => {\n  const originalObj = obj[propName]\n  const proxyObj = new Proxy(obj[propName], utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.redirectToString(proxyObj, originalObj)\n\n  return true\n}",    replaceGetterWithProxy: "(obj, propName, handler) => {\n  const fn = Object.getOwnPropertyDescriptor(obj, propName).get\n  const fnStr = fn.toString() // special getter function string\n  const proxyObj = new Proxy(fn, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { get: proxyObj })\n  utils.patchToString(proxyObj, fnStr)\n\n  return true\n}",    mockWithProxy: "(obj, propName, pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.patchToString(proxyObj)\n\n  return true\n}",    createProxy: "(pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n  utils.patchToString(proxyObj)\n\n  return proxyObj\n}",    splitObjPath: "objPath => ({\n  // Remove last dot entry (property) ==> `HTMLMediaElement.prototype`\n  objName: objPath.split('.').slice(0, -1).join('.'),\n  // Extract last dot entry ==> `canPlayType`\n  propName: objPath.split('.').slice(-1)[0]\n})",    replaceObjPathWithProxy: "(objPath, handler) => {\n  const { objName, propName } = utils.splitObjPath(objPath)\n  const obj = eval(objName) // eslint-disable-line no-eval\n  return utils.replaceWithProxy(obj, propName, handler)\n}",    execRecursively: "(obj = {}, typeFilter = [], fn) => {\n  function recurse(obj) {\n    for (const key in obj) {\n      if (obj[key] === undefined) {\n        continue\n      }\n      if (obj[key] && typeof obj[key] === 'object') {\n        recurse(obj[key])\n      } else {\n        if (obj[key] && typeFilter.includes(typeof obj[key])) {\n          fn.call(this, obj[key])\n        }\n      }\n    }\n  }\n  recurse(obj)\n  return obj\n}",    stringifyFns: "(fnObj = { hello: () => 'world' }) => {\n  // Object.fromEntries() ponyfill (in 6 lines) - supported only in Node v12+, modern browsers are fine\n  // https://github.com/feross/fromentries\n  function fromEntries(iterable) {\n    return [...iterable].reduce((obj, [key, val]) => {\n      obj[key] = val\n      return obj\n    }, {})\n  }\n  return (Object.fromEntries || fromEntries)(\n    Object.entries(fnObj)\n      .filter(([key, value]) => typeof value === 'function')\n      .map(([key, value]) => [key, value.toString()]) // eslint-disable-line no-eval\n  )\n}",    materializeFns: "(fnStrObj = { hello: \"() => 'world'\" }) => {\n  return Object.fromEntries(\n    Object.entries(fnStrObj).map(([key, value]) => {\n      if (value.startsWith('function')) {\n        // some trickery is needed to make oldschool functions work :-)\n        return [key, eval(`() => ${value}`)()] // eslint-disable-line no-eval\n      } else {\n        // arrow functions just work\n        return [key, eval(value)] // eslint-disable-line no-eval\n      }\n    })\n  )\n}",    makeHandler: "() => ({\n  // Used by simple `navigator` getter evasions\n  getterValue: value => ({\n    apply(target, ctx, args) {\n      // Let's fetch the value first, to trigger and escalate potential errors\n      // Illegal invocations like `navigator.__proto__.vendor` will throw here\n      utils.cache.Reflect.apply(...arguments)\n      return value\n    }\n  })\n})"  },  _mainFunction: "utils => {\n      /**\n       * Input might look funky, we need to normalize it so e.g. whitespace isn't an issue for our spoofing.\n       *\n       * @example\n       * video/webm; codecs=\"vp8, vorbis\"\n       * video/mp4; codecs=\"avc1.42E01E\"\n       * audio/x-m4a;\n       * audio/ogg; codecs=\"vorbis\"\n       * home.php?mod=space&uid=952169 {String} arg\n       */\n      const parseInput = arg => {\n        const [mime, codecStr] = arg.trim().split(';')\n        let codecs = []\n        if (codecStr && codecStr.includes('codecs=\"')) {\n          codecs = codecStr\n            .trim()\n            .replace(`codecs=\"`, '')\n            .replace(`\"`, '')\n            .trim()\n            .split(',')\n            .filter(x => !!x)\n            .map(x => x.trim())\n        }\n        return {\n          mime,\n          codecStr,\n          codecs\n        }\n      }\n\n      const canPlayType = {\n        // Intercept certain requests\n        apply: function(target, ctx, args) {\n          if (!args || !args.length) {\n            return target.apply(ctx, args)\n          }\n          const { mime, codecs } = parseInput(args[0])\n          // This specific mp4 codec is missing in Chromium\n          if (mime === 'video/mp4') {\n            if (codecs.includes('avc1.42E01E')) {\n              return 'probably'\n            }\n          }\n          // This mimetype is only supported if no codecs are specified\n          if (mime === 'audio/x-m4a' && !codecs.length) {\n            return 'maybe'\n          }\n\n          // This mimetype is only supported if no codecs are specified\n          if (mime === 'audio/aac' && !codecs.length) {\n            return 'probably'\n          }\n          // Everything else as usual\n          return target.apply(ctx, args)\n        }\n      }\n\n      /* global HTMLMediaElement */\n      utils.replaceWithProxy(\n        HTMLMediaElement.prototype,\n        'canPlayType',\n        canPlayType\n      )\n    }",  _args: []}), (({_utilsFns: _utilsFns, _mainFunction: _mainFunction, _args: _args}) => {  const utils = Object.fromEntries(Object.entries(_utilsFns).map((([key, value]) => [key, eval(value)])));  utils.init(), eval(_mainFunction)(utils, ..._args)})({  _utilsFns: {    init: "() => {\n  utils.preloadCache()\n}",    stripProxyFromErrors: "(handler = {}) => {\n  const newHandler = {\n    setPrototypeOf: function (target, proto) {\n      if (proto === null)\n        throw new TypeError('Cannot convert object to primitive value')\n      if (Object.getPrototypeOf(target) === Object.getPrototypeOf(proto)) {\n        throw new TypeError('Cyclic __proto__ value')\n      }\n      return Reflect.setPrototypeOf(target, proto)\n    }\n  }\n  // We wrap each trap in the handler in a try/catch and modify the error stack if they throw\n  const traps = Object.getOwnPropertyNames(handler)\n  traps.forEach(trap => {\n    newHandler[trap] = function () {\n      try {\n        // Forward the call to the defined proxy handler\n        return handler[trap].apply(this, arguments || [])\n      } catch (err) {\n        // Stack traces differ per browser, we only support chromium based ones currently\n        if (!err || !err.stack || !err.stack.includes(`at `)) {\n          throw err\n        }\n\n        // When something throws within one of our traps the Proxy will show up in error stacks\n        // An earlier implementation of this code would simply strip lines with a blacklist,\n        // but it makes sense to be more surgical here and only remove lines related to our Proxy.\n        // We try to use a known \"anchor\" line for that and strip it with everything above it.\n        // If the anchor line cannot be found for some reason we fall back to our blacklist approach.\n\n        const stripWithBlacklist = (stack, stripFirstLine = true) => {\n          const blacklist = [\n            `at Reflect.${trap} `, // e.g. Reflect.get or Reflect.apply\n            `at Object.${trap} `, // e.g. Object.get or Object.apply\n            `at Object.newHandler.<computed> [as ${trap}] ` // caused by this very wrapper :-)\n          ]\n          return (\n            err.stack\n              .split('\\n')\n              // Always remove the first (file) line in the stack (guaranteed to be our proxy)\n              .filter((line, index) => !(index === 1 && stripFirstLine))\n              // Check if the line starts with one of our blacklisted strings\n              .filter(line => !blacklist.some(bl => line.trim().startsWith(bl)))\n              .join('\\n')\n          )\n        }\n\n        const stripWithAnchor = (stack, anchor) => {\n          const stackArr = stack.split('\\n')\n          anchor = anchor || `at Object.newHandler.<computed> [as ${trap}] ` // Known first Proxy line in chromium\n          const anchorIndex = stackArr.findIndex(line =>\n            line.trim().startsWith(anchor)\n          )\n          if (anchorIndex === -1) {\n            return false // 404, anchor not found\n          }\n          // Strip everything from the top until we reach the anchor line\n          // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n          stackArr.splice(1, anchorIndex)\n          return stackArr.join('\\n')\n        }\n\n        // Special cases due to our nested toString proxies\n        err.stack = err.stack.replace(\n          'at Object.toString (',\n          'at Function.toString ('\n        )\n        if ((err.stack || '').includes('at Function.toString (')) {\n          err.stack = stripWithBlacklist(err.stack, false)\n          throw err\n        }\n\n        // Try using the anchor method, fallback to blacklist if necessary\n        err.stack = stripWithAnchor(err.stack) || stripWithBlacklist(err.stack)\n\n        throw err // Re-throw our now sanitized error\n      }\n    }\n  })\n  return newHandler\n}",    stripErrorWithAnchor: "(err, anchor) => {\n  const stackArr = err.stack.split('\\n')\n  const anchorIndex = stackArr.findIndex(line => line.trim().startsWith(anchor))\n  if (anchorIndex === -1) {\n    return err // 404, anchor not found\n  }\n  // Strip everything from the top until we reach the anchor line (remove anchor line as well)\n  // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n  stackArr.splice(1, anchorIndex)\n  err.stack = stackArr.join('\\n')\n  return err\n}",    replaceProperty: "(obj, propName, descriptorOverrides = {}) => {\n  return Object.defineProperty(obj, propName, {\n    // Copy over the existing descriptors (writable, enumerable, configurable, etc)\n    ...(Object.getOwnPropertyDescriptor(obj, propName) || {}),\n    // Add our overrides (e.g. value, get())\n    ...descriptorOverrides\n  })\n}",    preloadCache: "() => {\n  if (utils.cache) {\n    return\n  }\n  utils.cache = {\n    // Used in our proxies\n    Reflect: {\n      get: Reflect.get.bind(Reflect),\n      apply: Reflect.apply.bind(Reflect)\n    },\n    // Used in `makeNativeString`\n    nativeToStringStr: Function.toString + '' // => `function toString() { [native code] }`\n  }\n}",    makeNativeString: "(name = '') => {\n  return utils.cache.nativeToStringStr.replace('toString', name || '')\n}",    patchToString: "(obj, str = '') => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n      // `toString` targeted at our proxied Object detected\n      if (ctx === obj) {\n        // We either return the optional string verbatim or derive the most desired result automatically\n        return str || utils.makeNativeString(obj.name)\n      }\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    patchToStringNested: "(obj = {}) => {\n  return utils.execRecursively(obj, ['function'], utils.patchToString)\n}",    redirectToString: "(proxyObj, originalObj) => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n\n      // `toString` targeted at our proxied Object detected\n      if (ctx === proxyObj) {\n        const fallback = () =>\n          originalObj && originalObj.name\n            ? utils.makeNativeString(originalObj.name)\n            : utils.makeNativeString(proxyObj.name)\n\n        // Return the toString representation of our original object if possible\n        return originalObj + '' || fallback()\n      }\n\n      if (typeof ctx === 'undefined' || ctx === null) {\n        return target.call(ctx)\n      }\n\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    replaceWithProxy: "(obj, propName, handler) => {\n  const originalObj = obj[propName]\n  const proxyObj = new Proxy(obj[propName], utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.redirectToString(proxyObj, originalObj)\n\n  return true\n}",    replaceGetterWithProxy: "(obj, propName, handler) => {\n  const fn = Object.getOwnPropertyDescriptor(obj, propName).get\n  const fnStr = fn.toString() // special getter function string\n  const proxyObj = new Proxy(fn, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { get: proxyObj })\n  utils.patchToString(proxyObj, fnStr)\n\n  return true\n}",    mockWithProxy: "(obj, propName, pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.patchToString(proxyObj)\n\n  return true\n}",    createProxy: "(pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n  utils.patchToString(proxyObj)\n\n  return proxyObj\n}",    splitObjPath: "objPath => ({\n  // Remove last dot entry (property) ==> `HTMLMediaElement.prototype`\n  objName: objPath.split('.').slice(0, -1).join('.'),\n  // Extract last dot entry ==> `canPlayType`\n  propName: objPath.split('.').slice(-1)[0]\n})",    replaceObjPathWithProxy: "(objPath, handler) => {\n  const { objName, propName } = utils.splitObjPath(objPath)\n  const obj = eval(objName) // eslint-disable-line no-eval\n  return utils.replaceWithProxy(obj, propName, handler)\n}",    execRecursively: "(obj = {}, typeFilter = [], fn) => {\n  function recurse(obj) {\n    for (const key in obj) {\n      if (obj[key] === undefined) {\n        continue\n      }\n      if (obj[key] && typeof obj[key] === 'object') {\n        recurse(obj[key])\n      } else {\n        if (obj[key] && typeFilter.includes(typeof obj[key])) {\n          fn.call(this, obj[key])\n        }\n      }\n    }\n  }\n  recurse(obj)\n  return obj\n}",    stringifyFns: "(fnObj = { hello: () => 'world' }) => {\n  // Object.fromEntries() ponyfill (in 6 lines) - supported only in Node v12+, modern browsers are fine\n  // https://github.com/feross/fromentries\n  function fromEntries(iterable) {\n    return [...iterable].reduce((obj, [key, val]) => {\n      obj[key] = val\n      return obj\n    }, {})\n  }\n  return (Object.fromEntries || fromEntries)(\n    Object.entries(fnObj)\n      .filter(([key, value]) => typeof value === 'function')\n      .map(([key, value]) => [key, value.toString()]) // eslint-disable-line no-eval\n  )\n}",    materializeFns: "(fnStrObj = { hello: \"() => 'world'\" }) => {\n  return Object.fromEntries(\n    Object.entries(fnStrObj).map(([key, value]) => {\n      if (value.startsWith('function')) {\n        // some trickery is needed to make oldschool functions work :-)\n        return [key, eval(`() => ${value}`)()] // eslint-disable-line no-eval\n      } else {\n        // arrow functions just work\n        return [key, eval(value)] // eslint-disable-line no-eval\n      }\n    })\n  )\n}",    makeHandler: "() => ({\n  // Used by simple `navigator` getter evasions\n  getterValue: value => ({\n    apply(target, ctx, args) {\n      // Let's fetch the value first, to trigger and escalate potential errors\n      // Illegal invocations like `navigator.__proto__.vendor` will throw here\n      utils.cache.Reflect.apply(...arguments)\n      return value\n    }\n  })\n})"  },  _mainFunction: "(utils, { opts }) => {\n        utils.replaceGetterWithProxy(\n          Object.getPrototypeOf(navigator),\n          'hardwareConcurrency',\n          utils.makeHandler().getterValue(opts.hardwareConcurrency)\n        )\n      }",  _args: [{opts: {hardwareConcurrency: 4}}]}), (({_utilsFns: _utilsFns, _mainFunction: _mainFunction, _args: _args}) => {  const utils = Object.fromEntries(Object.entries(_utilsFns).map((([key, value]) => [key, eval(value)])));  utils.init(), eval(_mainFunction)(utils, ..._args)})({  _utilsFns: {    init: "() => {\n  utils.preloadCache()\n}",    stripProxyFromErrors: "(handler = {}) => {\n  const newHandler = {\n    setPrototypeOf: function (target, proto) {\n      if (proto === null)\n        throw new TypeError('Cannot convert object to primitive value')\n      if (Object.getPrototypeOf(target) === Object.getPrototypeOf(proto)) {\n        throw new TypeError('Cyclic __proto__ value')\n      }\n      return Reflect.setPrototypeOf(target, proto)\n    }\n  }\n  // We wrap each trap in the handler in a try/catch and modify the error stack if they throw\n  const traps = Object.getOwnPropertyNames(handler)\n  traps.forEach(trap => {\n    newHandler[trap] = function () {\n      try {\n        // Forward the call to the defined proxy handler\n        return handler[trap].apply(this, arguments || [])\n      } catch (err) {\n        // Stack traces differ per browser, we only support chromium based ones currently\n        if (!err || !err.stack || !err.stack.includes(`at `)) {\n          throw err\n        }\n\n        // When something throws within one of our traps the Proxy will show up in error stacks\n        // An earlier implementation of this code would simply strip lines with a blacklist,\n        // but it makes sense to be more surgical here and only remove lines related to our Proxy.\n        // We try to use a known \"anchor\" line for that and strip it with everything above it.\n        // If the anchor line cannot be found for some reason we fall back to our blacklist approach.\n\n        const stripWithBlacklist = (stack, stripFirstLine = true) => {\n          const blacklist = [\n            `at Reflect.${trap} `, // e.g. Reflect.get or Reflect.apply\n            `at Object.${trap} `, // e.g. Object.get or Object.apply\n            `at Object.newHandler.<computed> [as ${trap}] ` // caused by this very wrapper :-)\n          ]\n          return (\n            err.stack\n              .split('\\n')\n              // Always remove the first (file) line in the stack (guaranteed to be our proxy)\n              .filter((line, index) => !(index === 1 && stripFirstLine))\n              // Check if the line starts with one of our blacklisted strings\n              .filter(line => !blacklist.some(bl => line.trim().startsWith(bl)))\n              .join('\\n')\n          )\n        }\n\n        const stripWithAnchor = (stack, anchor) => {\n          const stackArr = stack.split('\\n')\n          anchor = anchor || `at Object.newHandler.<computed> [as ${trap}] ` // Known first Proxy line in chromium\n          const anchorIndex = stackArr.findIndex(line =>\n            line.trim().startsWith(anchor)\n          )\n          if (anchorIndex === -1) {\n            return false // 404, anchor not found\n          }\n          // Strip everything from the top until we reach the anchor line\n          // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n          stackArr.splice(1, anchorIndex)\n          return stackArr.join('\\n')\n        }\n\n        // Special cases due to our nested toString proxies\n        err.stack = err.stack.replace(\n          'at Object.toString (',\n          'at Function.toString ('\n        )\n        if ((err.stack || '').includes('at Function.toString (')) {\n          err.stack = stripWithBlacklist(err.stack, false)\n          throw err\n        }\n\n        // Try using the anchor method, fallback to blacklist if necessary\n        err.stack = stripWithAnchor(err.stack) || stripWithBlacklist(err.stack)\n\n        throw err // Re-throw our now sanitized error\n      }\n    }\n  })\n  return newHandler\n}",    stripErrorWithAnchor: "(err, anchor) => {\n  const stackArr = err.stack.split('\\n')\n  const anchorIndex = stackArr.findIndex(line => line.trim().startsWith(anchor))\n  if (anchorIndex === -1) {\n    return err // 404, anchor not found\n  }\n  // Strip everything from the top until we reach the anchor line (remove anchor line as well)\n  // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n  stackArr.splice(1, anchorIndex)\n  err.stack = stackArr.join('\\n')\n  return err\n}",    replaceProperty: "(obj, propName, descriptorOverrides = {}) => {\n  return Object.defineProperty(obj, propName, {\n    // Copy over the existing descriptors (writable, enumerable, configurable, etc)\n    ...(Object.getOwnPropertyDescriptor(obj, propName) || {}),\n    // Add our overrides (e.g. value, get())\n    ...descriptorOverrides\n  })\n}",    preloadCache: "() => {\n  if (utils.cache) {\n    return\n  }\n  utils.cache = {\n    // Used in our proxies\n    Reflect: {\n      get: Reflect.get.bind(Reflect),\n      apply: Reflect.apply.bind(Reflect)\n    },\n    // Used in `makeNativeString`\n    nativeToStringStr: Function.toString + '' // => `function toString() { [native code] }`\n  }\n}",    makeNativeString: "(name = '') => {\n  return utils.cache.nativeToStringStr.replace('toString', name || '')\n}",    patchToString: "(obj, str = '') => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n      // `toString` targeted at our proxied Object detected\n      if (ctx === obj) {\n        // We either return the optional string verbatim or derive the most desired result automatically\n        return str || utils.makeNativeString(obj.name)\n      }\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    patchToStringNested: "(obj = {}) => {\n  return utils.execRecursively(obj, ['function'], utils.patchToString)\n}",    redirectToString: "(proxyObj, originalObj) => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n\n      // `toString` targeted at our proxied Object detected\n      if (ctx === proxyObj) {\n        const fallback = () =>\n          originalObj && originalObj.name\n            ? utils.makeNativeString(originalObj.name)\n            : utils.makeNativeString(proxyObj.name)\n\n        // Return the toString representation of our original object if possible\n        return originalObj + '' || fallback()\n      }\n\n      if (typeof ctx === 'undefined' || ctx === null) {\n        return target.call(ctx)\n      }\n\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    replaceWithProxy: "(obj, propName, handler) => {\n  const originalObj = obj[propName]\n  const proxyObj = new Proxy(obj[propName], utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.redirectToString(proxyObj, originalObj)\n\n  return true\n}",    replaceGetterWithProxy: "(obj, propName, handler) => {\n  const fn = Object.getOwnPropertyDescriptor(obj, propName).get\n  const fnStr = fn.toString() // special getter function string\n  const proxyObj = new Proxy(fn, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { get: proxyObj })\n  utils.patchToString(proxyObj, fnStr)\n\n  return true\n}",    mockWithProxy: "(obj, propName, pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.patchToString(proxyObj)\n\n  return true\n}",    createProxy: "(pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n  utils.patchToString(proxyObj)\n\n  return proxyObj\n}",    splitObjPath: "objPath => ({\n  // Remove last dot entry (property) ==> `HTMLMediaElement.prototype`\n  objName: objPath.split('.').slice(0, -1).join('.'),\n  // Extract last dot entry ==> `canPlayType`\n  propName: objPath.split('.').slice(-1)[0]\n})",    replaceObjPathWithProxy: "(objPath, handler) => {\n  const { objName, propName } = utils.splitObjPath(objPath)\n  const obj = eval(objName) // eslint-disable-line no-eval\n  return utils.replaceWithProxy(obj, propName, handler)\n}",    execRecursively: "(obj = {}, typeFilter = [], fn) => {\n  function recurse(obj) {\n    for (const key in obj) {\n      if (obj[key] === undefined) {\n        continue\n      }\n      if (obj[key] && typeof obj[key] === 'object') {\n        recurse(obj[key])\n      } else {\n        if (obj[key] && typeFilter.includes(typeof obj[key])) {\n          fn.call(this, obj[key])\n        }\n      }\n    }\n  }\n  recurse(obj)\n  return obj\n}",    stringifyFns: "(fnObj = { hello: () => 'world' }) => {\n  // Object.fromEntries() ponyfill (in 6 lines) - supported only in Node v12+, modern browsers are fine\n  // https://github.com/feross/fromentries\n  function fromEntries(iterable) {\n    return [...iterable].reduce((obj, [key, val]) => {\n      obj[key] = val\n      return obj\n    }, {})\n  }\n  return (Object.fromEntries || fromEntries)(\n    Object.entries(fnObj)\n      .filter(([key, value]) => typeof value === 'function')\n      .map(([key, value]) => [key, value.toString()]) // eslint-disable-line no-eval\n  )\n}",    materializeFns: "(fnStrObj = { hello: \"() => 'world'\" }) => {\n  return Object.fromEntries(\n    Object.entries(fnStrObj).map(([key, value]) => {\n      if (value.startsWith('function')) {\n        // some trickery is needed to make oldschool functions work :-)\n        return [key, eval(`() => ${value}`)()] // eslint-disable-line no-eval\n      } else {\n        // arrow functions just work\n        return [key, eval(value)] // eslint-disable-line no-eval\n      }\n    })\n  )\n}",    makeHandler: "() => ({\n  // Used by simple `navigator` getter evasions\n  getterValue: value => ({\n    apply(target, ctx, args) {\n      // Let's fetch the value first, to trigger and escalate potential errors\n      // Illegal invocations like `navigator.__proto__.vendor` will throw here\n      utils.cache.Reflect.apply(...arguments)\n      return value\n    }\n  })\n})"  },  _mainFunction: "(utils, { opts }) => {\n        const languages = opts.languages.length\n          ? opts.languages\n          : ['en-US', 'en']\n        utils.replaceGetterWithProxy(\n          Object.getPrototypeOf(navigator),\n          'languages',\n          utils.makeHandler().getterValue(Object.freeze([...languages]))\n        )\n      }",  _args: [{opts: {languages: []}}]}), (({_utilsFns: _utilsFns, _mainFunction: _mainFunction, _args: _args}) => {  const utils = Object.fromEntries(Object.entries(_utilsFns).map((([key, value]) => [key, eval(value)])));  utils.init(), eval(_mainFunction)(utils, ..._args)})({  _utilsFns: {    init: "() => {\n  utils.preloadCache()\n}",    stripProxyFromErrors: "(handler = {}) => {\n  const newHandler = {\n    setPrototypeOf: function (target, proto) {\n      if (proto === null)\n        throw new TypeError('Cannot convert object to primitive value')\n      if (Object.getPrototypeOf(target) === Object.getPrototypeOf(proto)) {\n        throw new TypeError('Cyclic __proto__ value')\n      }\n      return Reflect.setPrototypeOf(target, proto)\n    }\n  }\n  // We wrap each trap in the handler in a try/catch and modify the error stack if they throw\n  const traps = Object.getOwnPropertyNames(handler)\n  traps.forEach(trap => {\n    newHandler[trap] = function () {\n      try {\n        // Forward the call to the defined proxy handler\n        return handler[trap].apply(this, arguments || [])\n      } catch (err) {\n        // Stack traces differ per browser, we only support chromium based ones currently\n        if (!err || !err.stack || !err.stack.includes(`at `)) {\n          throw err\n        }\n\n        // When something throws within one of our traps the Proxy will show up in error stacks\n        // An earlier implementation of this code would simply strip lines with a blacklist,\n        // but it makes sense to be more surgical here and only remove lines related to our Proxy.\n        // We try to use a known \"anchor\" line for that and strip it with everything above it.\n        // If the anchor line cannot be found for some reason we fall back to our blacklist approach.\n\n        const stripWithBlacklist = (stack, stripFirstLine = true) => {\n          const blacklist = [\n            `at Reflect.${trap} `, // e.g. Reflect.get or Reflect.apply\n            `at Object.${trap} `, // e.g. Object.get or Object.apply\n            `at Object.newHandler.<computed> [as ${trap}] ` // caused by this very wrapper :-)\n          ]\n          return (\n            err.stack\n              .split('\\n')\n              // Always remove the first (file) line in the stack (guaranteed to be our proxy)\n              .filter((line, index) => !(index === 1 && stripFirstLine))\n              // Check if the line starts with one of our blacklisted strings\n              .filter(line => !blacklist.some(bl => line.trim().startsWith(bl)))\n              .join('\\n')\n          )\n        }\n\n        const stripWithAnchor = (stack, anchor) => {\n          const stackArr = stack.split('\\n')\n          anchor = anchor || `at Object.newHandler.<computed> [as ${trap}] ` // Known first Proxy line in chromium\n          const anchorIndex = stackArr.findIndex(line =>\n            line.trim().startsWith(anchor)\n          )\n          if (anchorIndex === -1) {\n            return false // 404, anchor not found\n          }\n          // Strip everything from the top until we reach the anchor line\n          // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n          stackArr.splice(1, anchorIndex)\n          return stackArr.join('\\n')\n        }\n\n        // Special cases due to our nested toString proxies\n        err.stack = err.stack.replace(\n          'at Object.toString (',\n          'at Function.toString ('\n        )\n        if ((err.stack || '').includes('at Function.toString (')) {\n          err.stack = stripWithBlacklist(err.stack, false)\n          throw err\n        }\n\n        // Try using the anchor method, fallback to blacklist if necessary\n        err.stack = stripWithAnchor(err.stack) || stripWithBlacklist(err.stack)\n\n        throw err // Re-throw our now sanitized error\n      }\n    }\n  })\n  return newHandler\n}",    stripErrorWithAnchor: "(err, anchor) => {\n  const stackArr = err.stack.split('\\n')\n  const anchorIndex = stackArr.findIndex(line => line.trim().startsWith(anchor))\n  if (anchorIndex === -1) {\n    return err // 404, anchor not found\n  }\n  // Strip everything from the top until we reach the anchor line (remove anchor line as well)\n  // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n  stackArr.splice(1, anchorIndex)\n  err.stack = stackArr.join('\\n')\n  return err\n}",    replaceProperty: "(obj, propName, descriptorOverrides = {}) => {\n  return Object.defineProperty(obj, propName, {\n    // Copy over the existing descriptors (writable, enumerable, configurable, etc)\n    ...(Object.getOwnPropertyDescriptor(obj, propName) || {}),\n    // Add our overrides (e.g. value, get())\n    ...descriptorOverrides\n  })\n}",    preloadCache: "() => {\n  if (utils.cache) {\n    return\n  }\n  utils.cache = {\n    // Used in our proxies\n    Reflect: {\n      get: Reflect.get.bind(Reflect),\n      apply: Reflect.apply.bind(Reflect)\n    },\n    // Used in `makeNativeString`\n    nativeToStringStr: Function.toString + '' // => `function toString() { [native code] }`\n  }\n}",    makeNativeString: "(name = '') => {\n  return utils.cache.nativeToStringStr.replace('toString', name || '')\n}",    patchToString: "(obj, str = '') => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n      // `toString` targeted at our proxied Object detected\n      if (ctx === obj) {\n        // We either return the optional string verbatim or derive the most desired result automatically\n        return str || utils.makeNativeString(obj.name)\n      }\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    patchToStringNested: "(obj = {}) => {\n  return utils.execRecursively(obj, ['function'], utils.patchToString)\n}",    redirectToString: "(proxyObj, originalObj) => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n\n      // `toString` targeted at our proxied Object detected\n      if (ctx === proxyObj) {\n        const fallback = () =>\n          originalObj && originalObj.name\n            ? utils.makeNativeString(originalObj.name)\n            : utils.makeNativeString(proxyObj.name)\n\n        // Return the toString representation of our original object if possible\n        return originalObj + '' || fallback()\n      }\n\n      if (typeof ctx === 'undefined' || ctx === null) {\n        return target.call(ctx)\n      }\n\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    replaceWithProxy: "(obj, propName, handler) => {\n  const originalObj = obj[propName]\n  const proxyObj = new Proxy(obj[propName], utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.redirectToString(proxyObj, originalObj)\n\n  return true\n}",    replaceGetterWithProxy: "(obj, propName, handler) => {\n  const fn = Object.getOwnPropertyDescriptor(obj, propName).get\n  const fnStr = fn.toString() // special getter function string\n  const proxyObj = new Proxy(fn, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { get: proxyObj })\n  utils.patchToString(proxyObj, fnStr)\n\n  return true\n}",    mockWithProxy: "(obj, propName, pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.patchToString(proxyObj)\n\n  return true\n}",    createProxy: "(pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n  utils.patchToString(proxyObj)\n\n  return proxyObj\n}",    splitObjPath: "objPath => ({\n  // Remove last dot entry (property) ==> `HTMLMediaElement.prototype`\n  objName: objPath.split('.').slice(0, -1).join('.'),\n  // Extract last dot entry ==> `canPlayType`\n  propName: objPath.split('.').slice(-1)[0]\n})",    replaceObjPathWithProxy: "(objPath, handler) => {\n  const { objName, propName } = utils.splitObjPath(objPath)\n  const obj = eval(objName) // eslint-disable-line no-eval\n  return utils.replaceWithProxy(obj, propName, handler)\n}",    execRecursively: "(obj = {}, typeFilter = [], fn) => {\n  function recurse(obj) {\n    for (const key in obj) {\n      if (obj[key] === undefined) {\n        continue\n      }\n      if (obj[key] && typeof obj[key] === 'object') {\n        recurse(obj[key])\n      } else {\n        if (obj[key] && typeFilter.includes(typeof obj[key])) {\n          fn.call(this, obj[key])\n        }\n      }\n    }\n  }\n  recurse(obj)\n  return obj\n}",    stringifyFns: "(fnObj = { hello: () => 'world' }) => {\n  // Object.fromEntries() ponyfill (in 6 lines) - supported only in Node v12+, modern browsers are fine\n  // https://github.com/feross/fromentries\n  function fromEntries(iterable) {\n    return [...iterable].reduce((obj, [key, val]) => {\n      obj[key] = val\n      return obj\n    }, {})\n  }\n  return (Object.fromEntries || fromEntries)(\n    Object.entries(fnObj)\n      .filter(([key, value]) => typeof value === 'function')\n      .map(([key, value]) => [key, value.toString()]) // eslint-disable-line no-eval\n  )\n}",    materializeFns: "(fnStrObj = { hello: \"() => 'world'\" }) => {\n  return Object.fromEntries(\n    Object.entries(fnStrObj).map(([key, value]) => {\n      if (value.startsWith('function')) {\n        // some trickery is needed to make oldschool functions work :-)\n        return [key, eval(`() => ${value}`)()] // eslint-disable-line no-eval\n      } else {\n        // arrow functions just work\n        return [key, eval(value)] // eslint-disable-line no-eval\n      }\n    })\n  )\n}",    makeHandler: "() => ({\n  // Used by simple `navigator` getter evasions\n  getterValue: value => ({\n    apply(target, ctx, args) {\n      // Let's fetch the value first, to trigger and escalate potential errors\n      // Illegal invocations like `navigator.__proto__.vendor` will throw here\n      utils.cache.Reflect.apply(...arguments)\n      return value\n    }\n  })\n})"  },  _mainFunction: "(utils, opts) => {\n      const isSecure = document.location.protocol.startsWith('https')\n\n      // In headful on secure origins the permission should be \"default\", not \"denied\"\n      if (isSecure) {\n        utils.replaceGetterWithProxy(Notification, 'permission', {\n          apply() {\n            return 'default'\n          }\n        })\n      }\n\n      // Another weird behavior:\n      // On insecure origins in headful the state is \"denied\",\n      // whereas in headless it's \"prompt\"\n      if (!isSecure) {\n        const handler = {\n          apply(target, ctx, args) {\n            const param = (args || [])[0]\n\n            const isNotifications =\n              param && param.name && param.name === 'notifications'\n            if (!isNotifications) {\n              return utils.cache.Reflect.apply(...arguments)\n            }\n\n            return Promise.resolve(\n              Object.setPrototypeOf(\n                {\n                  state: 'denied',\n                  onchange: null\n                },\n                PermissionStatus.prototype\n              )\n            )\n          }\n        }\n        // Note: Don't use `Object.getPrototypeOf` here\n        utils.replaceWithProxy(Permissions.prototype, 'query', handler)\n      }\n    }",  _args: [{}]}), (({_utilsFns: _utilsFns, _mainFunction: _mainFunction, _args: _args}) => {  const utils = Object.fromEntries(Object.entries(_utilsFns).map((([key, value]) => [key, eval(value)])));  utils.init(), eval(_mainFunction)(utils, ..._args)})({  _utilsFns: {    init: "() => {\n  utils.preloadCache()\n}",    stripProxyFromErrors: "(handler = {}) => {\n  const newHandler = {\n    setPrototypeOf: function (target, proto) {\n      if (proto === null)\n        throw new TypeError('Cannot convert object to primitive value')\n      if (Object.getPrototypeOf(target) === Object.getPrototypeOf(proto)) {\n        throw new TypeError('Cyclic __proto__ value')\n      }\n      return Reflect.setPrototypeOf(target, proto)\n    }\n  }\n  // We wrap each trap in the handler in a try/catch and modify the error stack if they throw\n  const traps = Object.getOwnPropertyNames(handler)\n  traps.forEach(trap => {\n    newHandler[trap] = function () {\n      try {\n        // Forward the call to the defined proxy handler\n        return handler[trap].apply(this, arguments || [])\n      } catch (err) {\n        // Stack traces differ per browser, we only support chromium based ones currently\n        if (!err || !err.stack || !err.stack.includes(`at `)) {\n          throw err\n        }\n\n        // When something throws within one of our traps the Proxy will show up in error stacks\n        // An earlier implementation of this code would simply strip lines with a blacklist,\n        // but it makes sense to be more surgical here and only remove lines related to our Proxy.\n        // We try to use a known \"anchor\" line for that and strip it with everything above it.\n        // If the anchor line cannot be found for some reason we fall back to our blacklist approach.\n\n        const stripWithBlacklist = (stack, stripFirstLine = true) => {\n          const blacklist = [\n            `at Reflect.${trap} `, // e.g. Reflect.get or Reflect.apply\n            `at Object.${trap} `, // e.g. Object.get or Object.apply\n            `at Object.newHandler.<computed> [as ${trap}] ` // caused by this very wrapper :-)\n          ]\n          return (\n            err.stack\n              .split('\\n')\n              // Always remove the first (file) line in the stack (guaranteed to be our proxy)\n              .filter((line, index) => !(index === 1 && stripFirstLine))\n              // Check if the line starts with one of our blacklisted strings\n              .filter(line => !blacklist.some(bl => line.trim().startsWith(bl)))\n              .join('\\n')\n          )\n        }\n\n        const stripWithAnchor = (stack, anchor) => {\n          const stackArr = stack.split('\\n')\n          anchor = anchor || `at Object.newHandler.<computed> [as ${trap}] ` // Known first Proxy line in chromium\n          const anchorIndex = stackArr.findIndex(line =>\n            line.trim().startsWith(anchor)\n          )\n          if (anchorIndex === -1) {\n            return false // 404, anchor not found\n          }\n          // Strip everything from the top until we reach the anchor line\n          // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n          stackArr.splice(1, anchorIndex)\n          return stackArr.join('\\n')\n        }\n\n        // Special cases due to our nested toString proxies\n        err.stack = err.stack.replace(\n          'at Object.toString (',\n          'at Function.toString ('\n        )\n        if ((err.stack || '').includes('at Function.toString (')) {\n          err.stack = stripWithBlacklist(err.stack, false)\n          throw err\n        }\n\n        // Try using the anchor method, fallback to blacklist if necessary\n        err.stack = stripWithAnchor(err.stack) || stripWithBlacklist(err.stack)\n\n        throw err // Re-throw our now sanitized error\n      }\n    }\n  })\n  return newHandler\n}",    stripErrorWithAnchor: "(err, anchor) => {\n  const stackArr = err.stack.split('\\n')\n  const anchorIndex = stackArr.findIndex(line => line.trim().startsWith(anchor))\n  if (anchorIndex === -1) {\n    return err // 404, anchor not found\n  }\n  // Strip everything from the top until we reach the anchor line (remove anchor line as well)\n  // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n  stackArr.splice(1, anchorIndex)\n  err.stack = stackArr.join('\\n')\n  return err\n}",    replaceProperty: "(obj, propName, descriptorOverrides = {}) => {\n  return Object.defineProperty(obj, propName, {\n    // Copy over the existing descriptors (writable, enumerable, configurable, etc)\n    ...(Object.getOwnPropertyDescriptor(obj, propName) || {}),\n    // Add our overrides (e.g. value, get())\n    ...descriptorOverrides\n  })\n}",    preloadCache: "() => {\n  if (utils.cache) {\n    return\n  }\n  utils.cache = {\n    // Used in our proxies\n    Reflect: {\n      get: Reflect.get.bind(Reflect),\n      apply: Reflect.apply.bind(Reflect)\n    },\n    // Used in `makeNativeString`\n    nativeToStringStr: Function.toString + '' // => `function toString() { [native code] }`\n  }\n}",    makeNativeString: "(name = '') => {\n  return utils.cache.nativeToStringStr.replace('toString', name || '')\n}",    patchToString: "(obj, str = '') => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n      // `toString` targeted at our proxied Object detected\n      if (ctx === obj) {\n        // We either return the optional string verbatim or derive the most desired result automatically\n        return str || utils.makeNativeString(obj.name)\n      }\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    patchToStringNested: "(obj = {}) => {\n  return utils.execRecursively(obj, ['function'], utils.patchToString)\n}",    redirectToString: "(proxyObj, originalObj) => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n\n      // `toString` targeted at our proxied Object detected\n      if (ctx === proxyObj) {\n        const fallback = () =>\n          originalObj && originalObj.name\n            ? utils.makeNativeString(originalObj.name)\n            : utils.makeNativeString(proxyObj.name)\n\n        // Return the toString representation of our original object if possible\n        return originalObj + '' || fallback()\n      }\n\n      if (typeof ctx === 'undefined' || ctx === null) {\n        return target.call(ctx)\n      }\n\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    replaceWithProxy: "(obj, propName, handler) => {\n  const originalObj = obj[propName]\n  const proxyObj = new Proxy(obj[propName], utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.redirectToString(proxyObj, originalObj)\n\n  return true\n}",    replaceGetterWithProxy: "(obj, propName, handler) => {\n  const fn = Object.getOwnPropertyDescriptor(obj, propName).get\n  const fnStr = fn.toString() // special getter function string\n  const proxyObj = new Proxy(fn, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { get: proxyObj })\n  utils.patchToString(proxyObj, fnStr)\n\n  return true\n}",    mockWithProxy: "(obj, propName, pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.patchToString(proxyObj)\n\n  return true\n}",    createProxy: "(pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n  utils.patchToString(proxyObj)\n\n  return proxyObj\n}",    splitObjPath: "objPath => ({\n  // Remove last dot entry (property) ==> `HTMLMediaElement.prototype`\n  objName: objPath.split('.').slice(0, -1).join('.'),\n  // Extract last dot entry ==> `canPlayType`\n  propName: objPath.split('.').slice(-1)[0]\n})",    replaceObjPathWithProxy: "(objPath, handler) => {\n  const { objName, propName } = utils.splitObjPath(objPath)\n  const obj = eval(objName) // eslint-disable-line no-eval\n  return utils.replaceWithProxy(obj, propName, handler)\n}",    execRecursively: "(obj = {}, typeFilter = [], fn) => {\n  function recurse(obj) {\n    for (const key in obj) {\n      if (obj[key] === undefined) {\n        continue\n      }\n      if (obj[key] && typeof obj[key] === 'object') {\n        recurse(obj[key])\n      } else {\n        if (obj[key] && typeFilter.includes(typeof obj[key])) {\n          fn.call(this, obj[key])\n        }\n      }\n    }\n  }\n  recurse(obj)\n  return obj\n}",    stringifyFns: "(fnObj = { hello: () => 'world' }) => {\n  // Object.fromEntries() ponyfill (in 6 lines) - supported only in Node v12+, modern browsers are fine\n  // https://github.com/feross/fromentries\n  function fromEntries(iterable) {\n    return [...iterable].reduce((obj, [key, val]) => {\n      obj[key] = val\n      return obj\n    }, {})\n  }\n  return (Object.fromEntries || fromEntries)(\n    Object.entries(fnObj)\n      .filter(([key, value]) => typeof value === 'function')\n      .map(([key, value]) => [key, value.toString()]) // eslint-disable-line no-eval\n  )\n}",    materializeFns: "(fnStrObj = { hello: \"() => 'world'\" }) => {\n  return Object.fromEntries(\n    Object.entries(fnStrObj).map(([key, value]) => {\n      if (value.startsWith('function')) {\n        // some trickery is needed to make oldschool functions work :-)\n        return [key, eval(`() => ${value}`)()] // eslint-disable-line no-eval\n      } else {\n        // arrow functions just work\n        return [key, eval(value)] // eslint-disable-line no-eval\n      }\n    })\n  )\n}",    makeHandler: "() => ({\n  // Used by simple `navigator` getter evasions\n  getterValue: value => ({\n    apply(target, ctx, args) {\n      // Let's fetch the value first, to trigger and escalate potential errors\n      // Illegal invocations like `navigator.__proto__.vendor` will throw here\n      utils.cache.Reflect.apply(...arguments)\n      return value\n    }\n  })\n})"  },  _mainFunction: "(utils, { fns, data }) => {\n        fns = utils.materializeFns(fns)\n\n        // That means we're running headful\n        const hasPlugins = 'plugins' in navigator && navigator.plugins.length\n        if (hasPlugins) {\n          return // nothing to do here\n        }\n\n        const mimeTypes = fns.generateMimeTypeArray(utils, fns)(data.mimeTypes)\n        const plugins = fns.generatePluginArray(utils, fns)(data.plugins)\n\n        // Plugin and MimeType cross-reference each other, let's do that now\n        // Note: We're looping through `data.plugins` here, not the generated `plugins`\n        for (const pluginData of data.plugins) {\n          pluginData.__mimeTypes.forEach((type, index) => {\n            plugins[pluginData.name][index] = mimeTypes[type]\n\n            Object.defineProperty(plugins[pluginData.name], type, {\n              value: mimeTypes[type],\n              writable: false,\n              enumerable: false, // Not enumerable\n              configurable: true\n            })\n            Object.defineProperty(mimeTypes[type], 'enabledPlugin', {\n              value:\n                type === 'application/x-pnacl'\n                  ? mimeTypes['application/x-nacl'].enabledPlugin // these reference the same plugin, so we need to re-use the Proxy in order to avoid leaks\n                  : new Proxy(plugins[pluginData.name], {}), // Prevent circular references\n              writable: false,\n              enumerable: false, // Important: `JSON.stringify(navigator.plugins)`\n              configurable: true\n            })\n          })\n        }\n\n        const patchNavigator = (name, value) =>\n          utils.replaceProperty(Object.getPrototypeOf(navigator), name, {\n            get() {\n              return value\n            }\n          })\n\n        patchNavigator('mimeTypes', mimeTypes)\n        patchNavigator('plugins', plugins)\n\n        // All done\n      }",  _args: [{    fns: {      generateMimeTypeArray: "(utils, fns) => mimeTypesData => {\n  return fns.generateMagicArray(utils, fns)(\n    mimeTypesData,\n    MimeTypeArray.prototype,\n    MimeType.prototype,\n    'type'\n  )\n}",      generatePluginArray: "(utils, fns) => pluginsData => {\n  return fns.generateMagicArray(utils, fns)(\n    pluginsData,\n    PluginArray.prototype,\n    Plugin.prototype,\n    'name'\n  )\n}",      generateMagicArray: "(utils, fns) =>\n  function(\n    dataArray = [],\n    proto = MimeTypeArray.prototype,\n    itemProto = MimeType.prototype,\n    itemMainProp = 'type'\n  ) {\n    // Quick helper to set props with the same descriptors vanilla is using\n    const defineProp = (obj, prop, value) =>\n      Object.defineProperty(obj, prop, {\n        value,\n        writable: false,\n        enumerable: false, // Important for mimeTypes & plugins: `JSON.stringify(navigator.mimeTypes)`\n        configurable: true\n      })\n\n    // Loop over our fake data and construct items\n    const makeItem = data => {\n      const item = {}\n      for (const prop of Object.keys(data)) {\n        if (prop.startsWith('__')) {\n          continue\n        }\n        defineProp(item, prop, data[prop])\n      }\n      return patchItem(item, data)\n    }\n\n    const patchItem = (item, data) => {\n      let descriptor = Object.getOwnPropertyDescriptors(item)\n\n      // Special case: Plugins have a magic length property which is not enumerable\n      // e.g. `navigator.plugins[i].length` should always be the length of the assigned mimeTypes\n      if (itemProto === Plugin.prototype) {\n        descriptor = {\n          ...descriptor,\n          length: {\n            value: data.__mimeTypes.length,\n            writable: false,\n            enumerable: false,\n            configurable: true // Important to be able to use the ownKeys trap in a Proxy to strip `length`\n          }\n        }\n      }\n\n      // We need to spoof a specific `MimeType` or `Plugin` object\n      const obj = Object.create(itemProto, descriptor)\n\n      // Virtually all property keys are not enumerable in vanilla\n      const blacklist = [...Object.keys(data), 'length', 'enabledPlugin']\n      return new Proxy(obj, {\n        ownKeys(target) {\n          return Reflect.ownKeys(target).filter(k => !blacklist.includes(k))\n        },\n        getOwnPropertyDescriptor(target, prop) {\n          if (blacklist.includes(prop)) {\n            return undefined\n          }\n          return Reflect.getOwnPropertyDescriptor(target, prop)\n        }\n      })\n    }\n\n    const magicArray = []\n\n    // Loop through our fake data and use that to create convincing entities\n    dataArray.forEach(data => {\n      magicArray.push(makeItem(data))\n    })\n\n    // Add direct property access  based on types (e.g. `obj['application/pdf']`) afterwards\n    magicArray.forEach(entry => {\n      defineProp(magicArray, entry[itemMainProp], entry)\n    })\n\n    // This is the best way to fake the type to make sure this is false: `Array.isArray(navigator.mimeTypes)`\n    const magicArrayObj = Object.create(proto, {\n      ...Object.getOwnPropertyDescriptors(magicArray),\n\n      // There's one ugly quirk we unfortunately need to take care of:\n      // The `MimeTypeArray` prototype has an enumerable `length` property,\n      // but headful Chrome will still skip it when running `Object.getOwnPropertyNames(navigator.mimeTypes)`.\n      // To strip it we need to make it first `configurable` and can then overlay a Proxy with an `ownKeys` trap.\n      length: {\n        value: magicArray.length,\n        writable: false,\n        enumerable: false,\n        configurable: true // Important to be able to use the ownKeys trap in a Proxy to strip `length`\n      }\n    })\n\n    // Generate our functional function mocks :-)\n    const functionMocks = fns.generateFunctionMocks(utils)(\n      proto,\n      itemMainProp,\n      magicArray\n    )\n\n    // We need to overlay our custom object with a JS Proxy\n    const magicArrayObjProxy = new Proxy(magicArrayObj, {\n      get(target, key = '') {\n        // Redirect function calls to our custom proxied versions mocking the vanilla behavior\n        if (key === 'item') {\n          return functionMocks.item\n        }\n        if (key === 'namedItem') {\n          return functionMocks.namedItem\n        }\n        if (proto === PluginArray.prototype && key === 'refresh') {\n          return functionMocks.refresh\n        }\n        // Everything else can pass through as normal\n        return utils.cache.Reflect.get(...arguments)\n      },\n      ownKeys(target) {\n        // There are a couple of quirks where the original property demonstrates \"magical\" behavior that makes no sense\n        // This can be witnessed when calling `Object.getOwnPropertyNames(navigator.mimeTypes)` and the absense of `length`\n        // My guess is that it has to do with the recent change of not allowing data enumeration and this being implemented weirdly\n        // For that reason we just completely fake the available property names based on our data to match what regular Chrome is doing\n        // Specific issues when not patching this: `length` property is available, direct `types` props (e.g. `obj['application/pdf']`) are missing\n        const keys = []\n        const typeProps = magicArray.map(mt => mt[itemMainProp])\n        typeProps.forEach((_, i) => keys.push(`${i}`))\n        typeProps.forEach(propName => keys.push(propName))\n        return keys\n      },\n      getOwnPropertyDescriptor(target, prop) {\n        if (prop === 'length') {\n          return undefined\n        }\n        return Reflect.getOwnPropertyDescriptor(target, prop)\n      }\n    })\n\n    return magicArrayObjProxy\n  }",      generateFunctionMocks: "utils => (\n  proto,\n  itemMainProp,\n  dataArray\n) => ({\n  /** Returns the MimeType object with the specified index. */\n  item: utils.createProxy(proto.item, {\n    apply(target, ctx, args) {\n      if (!args.length) {\n        throw new TypeError(\n          `Failed to execute 'item' on '${\n            proto[Symbol.toStringTag]\n          }': 1 argument required, but only 0 present.`\n        )\n      }\n      // Special behavior alert:\n      // - Vanilla tries to cast strings to Numbers (only integers!) and use them as property index lookup\n      // - If anything else than an integer (including as string) is provided it will return the first entry\n      const isInteger = args[0] && Number.isInteger(Number(args[0])) // Cast potential string to number first, then check for integer\n      // Note: Vanilla never returns `undefined`\n      return (isInteger ? dataArray[Number(args[0])] : dataArray[0]) || null\n    }\n  }),\n  /** Returns the MimeType object with the specified name. */\n  namedItem: utils.createProxy(proto.namedItem, {\n    apply(target, ctx, args) {\n      if (!args.length) {\n        throw new TypeError(\n          `Failed to execute 'namedItem' on '${\n            proto[Symbol.toStringTag]\n          }': 1 argument required, but only 0 present.`\n        )\n      }\n      return dataArray.find(mt => mt[itemMainProp] === args[0]) || null // Not `undefined`!\n    }\n  }),\n  /** Does nothing and shall return nothing */\n  refresh: proto.refresh\n    ? utils.createProxy(proto.refresh, {\n        apply(target, ctx, args) {\n          return undefined\n        }\n      })\n    : undefined\n})"    },    data: {      mimeTypes: [{        type: "application/pdf",        suffixes: "pdf",        description: "",        __pluginName: "Chrome PDF Viewer"      }, {        type: "application/x-google-chrome-pdf",        suffixes: "pdf",        description: "Portable Document Format",        __pluginName: "Chrome PDF Plugin"      }, {        type: "application/x-nacl",        suffixes: "",        description: "Native Client Executable",        __pluginName: "Native Client"      }, {        type: "application/x-pnacl",        suffixes: "",        description: "Portable Native Client Executable",        __pluginName: "Native Client"      }],      plugins: [{        name: "Chrome PDF Plugin",        filename: "internal-pdf-viewer",        description: "Portable Document Format",        __mimeTypes: ["application/x-google-chrome-pdf"]      }, {        name: "Chrome PDF Viewer",        filename: "mhjfbmdgcfjbbpaeojofohoefgiehjai",        description: "",        __mimeTypes: ["application/pdf"]      }, {        name: "Native Client",        filename: "internal-nacl-plugin",        description: "",        __mimeTypes: ["application/x-nacl", "application/x-pnacl"]      }]    }  }]}), !1 === navigator.webdriver || void 0 === navigator.webdriver || delete Object.getPrototypeOf(navigator).webdriver, (({_utilsFns: _utilsFns, _mainFunction: _mainFunction, _args: _args}) => {  const utils = Object.fromEntries(Object.entries(_utilsFns).map((([key, value]) => [key, eval(value)])));  utils.init(), eval(_mainFunction)(utils, ..._args)})({  _utilsFns: {    init: "() => {\n  utils.preloadCache()\n}",    stripProxyFromErrors: "(handler = {}) => {\n  const newHandler = {\n    setPrototypeOf: function (target, proto) {\n      if (proto === null)\n        throw new TypeError('Cannot convert object to primitive value')\n      if (Object.getPrototypeOf(target) === Object.getPrototypeOf(proto)) {\n        throw new TypeError('Cyclic __proto__ value')\n      }\n      return Reflect.setPrototypeOf(target, proto)\n    }\n  }\n  // We wrap each trap in the handler in a try/catch and modify the error stack if they throw\n  const traps = Object.getOwnPropertyNames(handler)\n  traps.forEach(trap => {\n    newHandler[trap] = function () {\n      try {\n        // Forward the call to the defined proxy handler\n        return handler[trap].apply(this, arguments || [])\n      } catch (err) {\n        // Stack traces differ per browser, we only support chromium based ones currently\n        if (!err || !err.stack || !err.stack.includes(`at `)) {\n          throw err\n        }\n\n        // When something throws within one of our traps the Proxy will show up in error stacks\n        // An earlier implementation of this code would simply strip lines with a blacklist,\n        // but it makes sense to be more surgical here and only remove lines related to our Proxy.\n        // We try to use a known \"anchor\" line for that and strip it with everything above it.\n        // If the anchor line cannot be found for some reason we fall back to our blacklist approach.\n\n        const stripWithBlacklist = (stack, stripFirstLine = true) => {\n          const blacklist = [\n            `at Reflect.${trap} `, // e.g. Reflect.get or Reflect.apply\n            `at Object.${trap} `, // e.g. Object.get or Object.apply\n            `at Object.newHandler.<computed> [as ${trap}] ` // caused by this very wrapper :-)\n          ]\n          return (\n            err.stack\n              .split('\\n')\n              // Always remove the first (file) line in the stack (guaranteed to be our proxy)\n              .filter((line, index) => !(index === 1 && stripFirstLine))\n              // Check if the line starts with one of our blacklisted strings\n              .filter(line => !blacklist.some(bl => line.trim().startsWith(bl)))\n              .join('\\n')\n          )\n        }\n\n        const stripWithAnchor = (stack, anchor) => {\n          const stackArr = stack.split('\\n')\n          anchor = anchor || `at Object.newHandler.<computed> [as ${trap}] ` // Known first Proxy line in chromium\n          const anchorIndex = stackArr.findIndex(line =>\n            line.trim().startsWith(anchor)\n          )\n          if (anchorIndex === -1) {\n            return false // 404, anchor not found\n          }\n          // Strip everything from the top until we reach the anchor line\n          // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n          stackArr.splice(1, anchorIndex)\n          return stackArr.join('\\n')\n        }\n\n        // Special cases due to our nested toString proxies\n        err.stack = err.stack.replace(\n          'at Object.toString (',\n          'at Function.toString ('\n        )\n        if ((err.stack || '').includes('at Function.toString (')) {\n          err.stack = stripWithBlacklist(err.stack, false)\n          throw err\n        }\n\n        // Try using the anchor method, fallback to blacklist if necessary\n        err.stack = stripWithAnchor(err.stack) || stripWithBlacklist(err.stack)\n\n        throw err // Re-throw our now sanitized error\n      }\n    }\n  })\n  return newHandler\n}",    stripErrorWithAnchor: "(err, anchor) => {\n  const stackArr = err.stack.split('\\n')\n  const anchorIndex = stackArr.findIndex(line => line.trim().startsWith(anchor))\n  if (anchorIndex === -1) {\n    return err // 404, anchor not found\n  }\n  // Strip everything from the top until we reach the anchor line (remove anchor line as well)\n  // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n  stackArr.splice(1, anchorIndex)\n  err.stack = stackArr.join('\\n')\n  return err\n}",    replaceProperty: "(obj, propName, descriptorOverrides = {}) => {\n  return Object.defineProperty(obj, propName, {\n    // Copy over the existing descriptors (writable, enumerable, configurable, etc)\n    ...(Object.getOwnPropertyDescriptor(obj, propName) || {}),\n    // Add our overrides (e.g. value, get())\n    ...descriptorOverrides\n  })\n}",    preloadCache: "() => {\n  if (utils.cache) {\n    return\n  }\n  utils.cache = {\n    // Used in our proxies\n    Reflect: {\n      get: Reflect.get.bind(Reflect),\n      apply: Reflect.apply.bind(Reflect)\n    },\n    // Used in `makeNativeString`\n    nativeToStringStr: Function.toString + '' // => `function toString() { [native code] }`\n  }\n}",    makeNativeString: "(name = '') => {\n  return utils.cache.nativeToStringStr.replace('toString', name || '')\n}",    patchToString: "(obj, str = '') => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n      // `toString` targeted at our proxied Object detected\n      if (ctx === obj) {\n        // We either return the optional string verbatim or derive the most desired result automatically\n        return str || utils.makeNativeString(obj.name)\n      }\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    patchToStringNested: "(obj = {}) => {\n  return utils.execRecursively(obj, ['function'], utils.patchToString)\n}",    redirectToString: "(proxyObj, originalObj) => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n\n      // `toString` targeted at our proxied Object detected\n      if (ctx === proxyObj) {\n        const fallback = () =>\n          originalObj && originalObj.name\n            ? utils.makeNativeString(originalObj.name)\n            : utils.makeNativeString(proxyObj.name)\n\n        // Return the toString representation of our original object if possible\n        return originalObj + '' || fallback()\n      }\n\n      if (typeof ctx === 'undefined' || ctx === null) {\n        return target.call(ctx)\n      }\n\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    replaceWithProxy: "(obj, propName, handler) => {\n  const originalObj = obj[propName]\n  const proxyObj = new Proxy(obj[propName], utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.redirectToString(proxyObj, originalObj)\n\n  return true\n}",    replaceGetterWithProxy: "(obj, propName, handler) => {\n  const fn = Object.getOwnPropertyDescriptor(obj, propName).get\n  const fnStr = fn.toString() // special getter function string\n  const proxyObj = new Proxy(fn, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { get: proxyObj })\n  utils.patchToString(proxyObj, fnStr)\n\n  return true\n}",    mockWithProxy: "(obj, propName, pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.patchToString(proxyObj)\n\n  return true\n}",    createProxy: "(pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n  utils.patchToString(proxyObj)\n\n  return proxyObj\n}",    splitObjPath: "objPath => ({\n  // Remove last dot entry (property) ==> `HTMLMediaElement.prototype`\n  objName: objPath.split('.').slice(0, -1).join('.'),\n  // Extract last dot entry ==> `canPlayType`\n  propName: objPath.split('.').slice(-1)[0]\n})",    replaceObjPathWithProxy: "(objPath, handler) => {\n  const { objName, propName } = utils.splitObjPath(objPath)\n  const obj = eval(objName) // eslint-disable-line no-eval\n  return utils.replaceWithProxy(obj, propName, handler)\n}",    execRecursively: "(obj = {}, typeFilter = [], fn) => {\n  function recurse(obj) {\n    for (const key in obj) {\n      if (obj[key] === undefined) {\n        continue\n      }\n      if (obj[key] && typeof obj[key] === 'object') {\n        recurse(obj[key])\n      } else {\n        if (obj[key] && typeFilter.includes(typeof obj[key])) {\n          fn.call(this, obj[key])\n        }\n      }\n    }\n  }\n  recurse(obj)\n  return obj\n}",    stringifyFns: "(fnObj = { hello: () => 'world' }) => {\n  // Object.fromEntries() ponyfill (in 6 lines) - supported only in Node v12+, modern browsers are fine\n  // https://github.com/feross/fromentries\n  function fromEntries(iterable) {\n    return [...iterable].reduce((obj, [key, val]) => {\n      obj[key] = val\n      return obj\n    }, {})\n  }\n  return (Object.fromEntries || fromEntries)(\n    Object.entries(fnObj)\n      .filter(([key, value]) => typeof value === 'function')\n      .map(([key, value]) => [key, value.toString()]) // eslint-disable-line no-eval\n  )\n}",    materializeFns: "(fnStrObj = { hello: \"() => 'world'\" }) => {\n  return Object.fromEntries(\n    Object.entries(fnStrObj).map(([key, value]) => {\n      if (value.startsWith('function')) {\n        // some trickery is needed to make oldschool functions work :-)\n        return [key, eval(`() => ${value}`)()] // eslint-disable-line no-eval\n      } else {\n        // arrow functions just work\n        return [key, eval(value)] // eslint-disable-line no-eval\n      }\n    })\n  )\n}",    makeHandler: "() => ({\n  // Used by simple `navigator` getter evasions\n  getterValue: value => ({\n    apply(target, ctx, args) {\n      // Let's fetch the value first, to trigger and escalate potential errors\n      // Illegal invocations like `navigator.__proto__.vendor` will throw here\n      utils.cache.Reflect.apply(...arguments)\n      return value\n    }\n  })\n})"  },  _mainFunction: "(utils, opts) => {\n      const getParameterProxyHandler = {\n        apply: function(target, ctx, args) {\n          const param = (args || [])[0]\n          const result = utils.cache.Reflect.apply(target, ctx, args)\n          // UNMASKED_VENDOR_WEBGL\n          if (param === 37445) {\n            return opts.vendor || 'Intel Inc.' // default in headless: Google Inc.\n          }\n          // UNMASKED_RENDERER_WEBGL\n          if (param === 37446) {\n            return opts.renderer || 'Intel Iris OpenGL Engine' // default in headless: Google SwiftShader\n          }\n          return result\n        }\n      }\n\n      // There's more than one WebGL rendering context\n      // https://developer.mozilla.org/en-US/docs/Web/API/WebGL2RenderingContext#Browser_compatibility\n      // To find out the original values here: Object.getOwnPropertyDescriptors(WebGLRenderingContext.prototype.getParameter)\n      const addProxy = (obj, propName) => {\n        utils.replaceWithProxy(obj, propName, getParameterProxyHandler)\n      }\n      // For whatever weird reason loops don't play nice with Object.defineProperty, here's the next best thing:\n      addProxy(WebGLRenderingContext.prototype, 'getParameter')\n      addProxy(WebGL2RenderingContext.prototype, 'getParameter')\n    }",  _args: [{}]}), (() => {  try {    if (window.outerWidth && window.outerHeight) return;    const n = 85;    window.outerWidth = window.innerWidth, window.outerHeight = window.innerHeight + n  } catch (n) {  }})(), (({_utilsFns: _utilsFns, _mainFunction: _mainFunction, _args: _args}) => {  const utils = Object.fromEntries(Object.entries(_utilsFns).map((([key, value]) => [key, eval(value)])));  utils.init(), eval(_mainFunction)(utils, ..._args)})({  _utilsFns: {    init: "() => {\n  utils.preloadCache()\n}",    stripProxyFromErrors: "(handler = {}) => {\n  const newHandler = {\n    setPrototypeOf: function (target, proto) {\n      if (proto === null)\n        throw new TypeError('Cannot convert object to primitive value')\n      if (Object.getPrototypeOf(target) === Object.getPrototypeOf(proto)) {\n        throw new TypeError('Cyclic __proto__ value')\n      }\n      return Reflect.setPrototypeOf(target, proto)\n    }\n  }\n  // We wrap each trap in the handler in a try/catch and modify the error stack if they throw\n  const traps = Object.getOwnPropertyNames(handler)\n  traps.forEach(trap => {\n    newHandler[trap] = function () {\n      try {\n        // Forward the call to the defined proxy handler\n        return handler[trap].apply(this, arguments || [])\n      } catch (err) {\n        // Stack traces differ per browser, we only support chromium based ones currently\n        if (!err || !err.stack || !err.stack.includes(`at `)) {\n          throw err\n        }\n\n        // When something throws within one of our traps the Proxy will show up in error stacks\n        // An earlier implementation of this code would simply strip lines with a blacklist,\n        // but it makes sense to be more surgical here and only remove lines related to our Proxy.\n        // We try to use a known \"anchor\" line for that and strip it with everything above it.\n        // If the anchor line cannot be found for some reason we fall back to our blacklist approach.\n\n        const stripWithBlacklist = (stack, stripFirstLine = true) => {\n          const blacklist = [\n            `at Reflect.${trap} `, // e.g. Reflect.get or Reflect.apply\n            `at Object.${trap} `, // e.g. Object.get or Object.apply\n            `at Object.newHandler.<computed> [as ${trap}] ` // caused by this very wrapper :-)\n          ]\n          return (\n            err.stack\n              .split('\\n')\n              // Always remove the first (file) line in the stack (guaranteed to be our proxy)\n              .filter((line, index) => !(index === 1 && stripFirstLine))\n              // Check if the line starts with one of our blacklisted strings\n              .filter(line => !blacklist.some(bl => line.trim().startsWith(bl)))\n              .join('\\n')\n          )\n        }\n\n        const stripWithAnchor = (stack, anchor) => {\n          const stackArr = stack.split('\\n')\n          anchor = anchor || `at Object.newHandler.<computed> [as ${trap}] ` // Known first Proxy line in chromium\n          const anchorIndex = stackArr.findIndex(line =>\n            line.trim().startsWith(anchor)\n          )\n          if (anchorIndex === -1) {\n            return false // 404, anchor not found\n          }\n          // Strip everything from the top until we reach the anchor line\n          // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n          stackArr.splice(1, anchorIndex)\n          return stackArr.join('\\n')\n        }\n\n        // Special cases due to our nested toString proxies\n        err.stack = err.stack.replace(\n          'at Object.toString (',\n          'at Function.toString ('\n        )\n        if ((err.stack || '').includes('at Function.toString (')) {\n          err.stack = stripWithBlacklist(err.stack, false)\n          throw err\n        }\n\n        // Try using the anchor method, fallback to blacklist if necessary\n        err.stack = stripWithAnchor(err.stack) || stripWithBlacklist(err.stack)\n\n        throw err // Re-throw our now sanitized error\n      }\n    }\n  })\n  return newHandler\n}",    stripErrorWithAnchor: "(err, anchor) => {\n  const stackArr = err.stack.split('\\n')\n  const anchorIndex = stackArr.findIndex(line => line.trim().startsWith(anchor))\n  if (anchorIndex === -1) {\n    return err // 404, anchor not found\n  }\n  // Strip everything from the top until we reach the anchor line (remove anchor line as well)\n  // Note: We're keeping the 1st line (zero index) as it's unrelated (e.g. `TypeError`)\n  stackArr.splice(1, anchorIndex)\n  err.stack = stackArr.join('\\n')\n  return err\n}",    replaceProperty: "(obj, propName, descriptorOverrides = {}) => {\n  return Object.defineProperty(obj, propName, {\n    // Copy over the existing descriptors (writable, enumerable, configurable, etc)\n    ...(Object.getOwnPropertyDescriptor(obj, propName) || {}),\n    // Add our overrides (e.g. value, get())\n    ...descriptorOverrides\n  })\n}",    preloadCache: "() => {\n  if (utils.cache) {\n    return\n  }\n  utils.cache = {\n    // Used in our proxies\n    Reflect: {\n      get: Reflect.get.bind(Reflect),\n      apply: Reflect.apply.bind(Reflect)\n    },\n    // Used in `makeNativeString`\n    nativeToStringStr: Function.toString + '' // => `function toString() { [native code] }`\n  }\n}",    makeNativeString: "(name = '') => {\n  return utils.cache.nativeToStringStr.replace('toString', name || '')\n}",    patchToString: "(obj, str = '') => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n      // `toString` targeted at our proxied Object detected\n      if (ctx === obj) {\n        // We either return the optional string verbatim or derive the most desired result automatically\n        return str || utils.makeNativeString(obj.name)\n      }\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    patchToStringNested: "(obj = {}) => {\n  return utils.execRecursively(obj, ['function'], utils.patchToString)\n}",    redirectToString: "(proxyObj, originalObj) => {\n  const handler = {\n    apply: function (target, ctx) {\n      // This fixes e.g. `HTMLMediaElement.prototype.canPlayType.toString + \"\"`\n      if (ctx === Function.prototype.toString) {\n        return utils.makeNativeString('toString')\n      }\n\n      // `toString` targeted at our proxied Object detected\n      if (ctx === proxyObj) {\n        const fallback = () =>\n          originalObj && originalObj.name\n            ? utils.makeNativeString(originalObj.name)\n            : utils.makeNativeString(proxyObj.name)\n\n        // Return the toString representation of our original object if possible\n        return originalObj + '' || fallback()\n      }\n\n      if (typeof ctx === 'undefined' || ctx === null) {\n        return target.call(ctx)\n      }\n\n      // Check if the toString protype of the context is the same as the global prototype,\n      // if not indicates that we are doing a check across different windows., e.g. the iframeWithdirect` test case\n      const hasSameProto = Object.getPrototypeOf(\n        Function.prototype.toString\n      ).isPrototypeOf(ctx.toString) // eslint-disable-line no-prototype-builtins\n      if (!hasSameProto) {\n        // Pass the call on to the local Function.prototype.toString instead\n        return ctx.toString()\n      }\n\n      return target.call(ctx)\n    }\n  }\n\n  const toStringProxy = new Proxy(\n    Function.prototype.toString,\n    utils.stripProxyFromErrors(handler)\n  )\n  utils.replaceProperty(Function.prototype, 'toString', {\n    value: toStringProxy\n  })\n}",    replaceWithProxy: "(obj, propName, handler) => {\n  const originalObj = obj[propName]\n  const proxyObj = new Proxy(obj[propName], utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.redirectToString(proxyObj, originalObj)\n\n  return true\n}",    replaceGetterWithProxy: "(obj, propName, handler) => {\n  const fn = Object.getOwnPropertyDescriptor(obj, propName).get\n  const fnStr = fn.toString() // special getter function string\n  const proxyObj = new Proxy(fn, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { get: proxyObj })\n  utils.patchToString(proxyObj, fnStr)\n\n  return true\n}",    mockWithProxy: "(obj, propName, pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n\n  utils.replaceProperty(obj, propName, { value: proxyObj })\n  utils.patchToString(proxyObj)\n\n  return true\n}",    createProxy: "(pseudoTarget, handler) => {\n  const proxyObj = new Proxy(pseudoTarget, utils.stripProxyFromErrors(handler))\n  utils.patchToString(proxyObj)\n\n  return proxyObj\n}",    splitObjPath: "objPath => ({\n  // Remove last dot entry (property) ==> `HTMLMediaElement.prototype`\n  objName: objPath.split('.').slice(0, -1).join('.'),\n  // Extract last dot entry ==> `canPlayType`\n  propName: objPath.split('.').slice(-1)[0]\n})",    replaceObjPathWithProxy: "(objPath, handler) => {\n  const { objName, propName } = utils.splitObjPath(objPath)\n  const obj = eval(objName) // eslint-disable-line no-eval\n  return utils.replaceWithProxy(obj, propName, handler)\n}",    execRecursively: "(obj = {}, typeFilter = [], fn) => {\n  function recurse(obj) {\n    for (const key in obj) {\n      if (obj[key] === undefined) {\n        continue\n      }\n      if (obj[key] && typeof obj[key] === 'object') {\n        recurse(obj[key])\n      } else {\n        if (obj[key] && typeFilter.includes(typeof obj[key])) {\n          fn.call(this, obj[key])\n        }\n      }\n    }\n  }\n  recurse(obj)\n  return obj\n}",    stringifyFns: "(fnObj = { hello: () => 'world' }) => {\n  // Object.fromEntries() ponyfill (in 6 lines) - supported only in Node v12+, modern browsers are fine\n  // https://github.com/feross/fromentries\n  function fromEntries(iterable) {\n    return [...iterable].reduce((obj, [key, val]) => {\n      obj[key] = val\n      return obj\n    }, {})\n  }\n  return (Object.fromEntries || fromEntries)(\n    Object.entries(fnObj)\n      .filter(([key, value]) => typeof value === 'function')\n      .map(([key, value]) => [key, value.toString()]) // eslint-disable-line no-eval\n  )\n}",    materializeFns: "(fnStrObj = { hello: \"() => 'world'\" }) => {\n  return Object.fromEntries(\n    Object.entries(fnStrObj).map(([key, value]) => {\n      if (value.startsWith('function')) {\n        // some trickery is needed to make oldschool functions work :-)\n        return [key, eval(`() => ${value}`)()] // eslint-disable-line no-eval\n      } else {\n        // arrow functions just work\n        return [key, eval(value)] // eslint-disable-line no-eval\n      }\n    })\n  )\n}",    makeHandler: "() => ({\n  // Used by simple `navigator` getter evasions\n  getterValue: value => ({\n    apply(target, ctx, args) {\n      // Let's fetch the value first, to trigger and escalate potential errors\n      // Illegal invocations like `navigator.__proto__.vendor` will throw here\n      utils.cache.Reflect.apply(...arguments)\n      return value\n    }\n  })\n})"  },  _mainFunction: "(utils, opts) => {\n      try {\n        // Adds a contentWindow proxy to the provided iframe element\n        const addContentWindowProxy = iframe => {\n          const contentWindowProxy = {\n            get(target, key) {\n              // Now to the interesting part:\n              // We actually make this thing behave like a regular iframe window,\n              // by intercepting calls to e.g. `.self` and redirect it to the correct thing. :)\n              // That makes it possible for these assertions to be correct:\n              // iframe.contentWindow.self === window.top // must be false\n              if (key === 'self') {\n                return this\n              }\n              // iframe.contentWindow.frameElement === iframe // must be true\n              if (key === 'frameElement') {\n                return iframe\n              }\n              // Intercept iframe.contentWindow[0] to hide the property 0 added by the proxy.\n              if (key === '0') {\n                  return undefined\n              }\n              return Reflect.get(target, key)\n            }\n          }\n\n          if (!iframe.contentWindow) {\n            const proxy = new Proxy(window, contentWindowProxy)\n            Object.defineProperty(iframe, 'contentWindow', {\n              get() {\n                return proxy\n              },\n              set(newValue) {\n                return newValue // contentWindow is immutable\n              },\n              enumerable: true,\n              configurable: false\n            })\n          }\n        }\n\n        // Handles iframe element creation, augments `srcdoc` property so we can intercept further\n        const handleIframeCreation = (target, thisArg, args) => {\n          const iframe = target.apply(thisArg, args)\n\n          // We need to keep the originals around\n          const _iframe = iframe\n          const _srcdoc = _iframe.srcdoc\n\n          // Add hook for the srcdoc property\n          // We need to be very surgical here to not break other iframes by accident\n          Object.defineProperty(iframe, 'srcdoc', {\n            configurable: true, // Important, so we can reset this later\n            get: function() {\n              return _srcdoc\n            },\n            set: function(newValue) {\n              addContentWindowProxy(this)\n              // Reset property, the hook is only needed once\n              Object.defineProperty(iframe, 'srcdoc', {\n                configurable: false,\n                writable: false,\n                value: _srcdoc\n              })\n              _iframe.srcdoc = newValue\n            }\n          })\n          return iframe\n        }\n\n        // Adds a hook to intercept iframe creation events\n        const addIframeCreationSniffer = () => {\n          /* global document */\n          const createElementHandler = {\n            // Make toString() native\n            get(target, key) {\n              return Reflect.get(target, key)\n            },\n            apply: function(target, thisArg, args) {\n              const isIframe =\n                args && args.length && `${args[0]}`.toLowerCase() === 'iframe'\n              if (!isIframe) {\n                // Everything as usual\n                return target.apply(thisArg, args)\n              } else {\n                return handleIframeCreation(target, thisArg, args)\n              }\n            }\n          }\n          // All this just due to iframes with srcdoc bug\n          utils.replaceWithProxy(\n            document,\n            'createElement',\n            createElementHandler\n          )\n        }\n\n        // Let's go\n        addIframeCreationSniffer()\n      } catch (err) {\n        // console.warn(err)\n      }\n    }",  _args: []});

但是你要明白，我们这里要教的是chromium浏览器源码层面，以一种更底层的方式来修改。

第二步，定位要修改的源码。如果是使用vs2019打开chromium项目，将会被数以万计的解决方案所淹没。面对这一庞大的工程，小白肯定是目瞪口呆的。因为我们采取在线浏览定位的方式。

chromium在线源码浏览：源码浏览。在这个网站上可以轻松快捷地查看最新版的chromium的源代码，而且有强大的搜索跳转功能，已经能够满足我们修改chromium源码的需求了，因为我们仅仅是要抹除一些特征用于自动化，而非进行浏览器的二次开发。

6.png

接着，进入chromium/src当中，切换到third_party/blink目录之下，搜索<span class="ne-text">Navigator::webdriver</span>，之所以在blink目录之下，是因为chromium使用的是blink内核，在blink之下可以缩小范围，减少搜索量。

7.png

许多人可能想问，我为什么知道是搜<span class="ne-text">Navigator::webdriver</span>？事实上，我也不知道要搜的是这个，我是先搜索了<span class="ne-text">webdriver</span>，之后又把navigator相关的文件查看完毕，才知道是这个，这里只是为了让各位更快定位。

chromium中的原始代码如下所示：

bool Navigator::webdriver() const {  if (RuntimeEnabledFeatures::AutomationControlledEnabled())    return true;  bool automation_enabled = false;  probe::ApplyAutomationOverride(GetExecutionContext(), automation_enabled);  return automation_enabled;}

        我们稍作修改，可以让它永远返回false，或者按照你的需求让它返回其他东西。

bool Navigator::webdriver() const {    return false;}

修改完毕之后，我们返回src目录之下，在cmd中输入<span class="ne-text">autoninja -C out\build mini_installer</span>这次的更新会非常迅速，回编译成功之后，我们就可以看到webdriver已经被修改了。

如果要修改<span class="ne-text">isTrust</span>也是同理的，直接搜索修改就好了：

bool isTrusted() const { return is_trusted_; }

4.如何随机浏览器指纹

"nofollow noopener" href="https://github.com/fingerprintjs/fingerprintjs">fingerprint。

说白了，和JS逆向一样，你要随机哪个网站的指纹，先要查看一下该网站的JS代码，看看它计算指纹的时候使用的是哪个方法。举个非常简单的例子，拿canvas指纹来说，创建canvas画布会有非常多的API接口可用于指纹计算：

function makeTextImage(canvas: HTMLCanvasElement, context: CanvasRenderingContext2D) {  canvas.width = 240  canvas.height = 60  context.textBaseline = 'alphabetic'  context.fillStyle = '#f60'  context.fillRect(100, 1, 62, 20)  context.fillStyle = '#069'  const printedText = `Cwm fjordbank gly ${String.fromCharCode(55357, 56835) /* "ne-text">width</span>和<span class="ne-text">height</span>，可能该网站在计算指纹的时候，会指定宽高，那我们可以直接把底层的宽高随机掉，或者更改为你需要的数值。
8.png 
或者说这个网站进行指纹检测会使用颜色，那么干脆颜色也随机好了：
9.png 
那如果我使用的是<span class="ne-text">toDataURL</span>呢？一样的，随便改改类型或者result就可以：
10.png 
推及到其他的浏览器指纹上，webgl，webaudio，webrtc，font，css font，navigator，SSL/TLS指纹都是同理的，只要有耐心，一个一个去找对应的代码实现，可以把所有的指纹都随机掉。
5.浏览器固定指纹
"parsedown-markdown-end_FLAG_ZXSQ" style="display:none">

        

            
上一篇：[易语言]云顶之弈阵容推荐查看工具
            
下一篇：文库下载器3.0