Also note the use of _call.call(_toString, original) rather than simply original.toString(). This is because original.toString might itself be hooked by the time spoof is called. By holding cached references to Function.prototype.call and Function.prototype.toString at the very beginning of the script (before any page code runs), and invoking them via those cached references, the spoof function is immune to any tampering that might have happened in the interim. It’s eating its own tail in the most delightful way.
Plaud、BubblePal等公司的初期爆发，无不验证了这一点：硬件本身就是一个可盈利的SKU。。谷歌浏览器【最新下载地址】对此有专业解读
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$44.95 at Amazon，更多细节参见下载安装 谷歌浏览器 开启极速安全的 上网之旅。
This story was originally featured on Fortune.com