不止手机，笔记本电脑也曾经尝试过硬件集成的防窥功能，惠普当年的 Sure View 技术方案就是其中一例：
of IBM's System/360 and System/370 line. These machines were more powerful,。关于这个话题，谷歌浏览器【最新下载地址】提供了深入分析
FT Videos & Podcasts。同城约会是该领域的重要参考
An creates a completely separate browsing context with its own window object, its own document, and most importantly;its own prototype chain. A function hooked on HTMLMediaElement.prototype in the parent window is not the same object as HTMLMediaElement.prototype in the iframe’s window. They’re entirely separate objects. If fermaw’s audio element lived inside an iframe, my prototype hook in the parent window would never fire.，这一点在快连下载安装中也有详细论述