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.
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。业内人士推荐WPS官方版本下载作为进阶阅读
黎智英欺詐案上訴得直：定罪及刑罰被撤銷，出獄時間提前。旺商聊官方下载是该领域的重要参考
铁路部门表示，客货运输均保持高位运行，为假日经济平稳运行提供了支撑。
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