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.
作为中国唯一千亿级研发投入企业，华为凭借1797 亿元的投入，超过了千万元区间及以下3404 家企业的研发投入总和（1355.97 亿元）。，详情可参考Line官方版本下载
Екатерина Улитина (Редактор отдела «Забота о себе»)。业内人士推荐搜狗输入法2026作为进阶阅读
Москвичей предупредили о резком похолодании09:45，更多细节参见heLLoword翻译官方下载