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.
（新华社北京2月25日电 记者朱基钗、胡浩、丁小溪、高蕾、胡梦雪）
。同城约会对此有专业解读
Mr Fingleton added: "Motorways wouldn't be very useful if we all drove at five miles (8km) an hour, but that's sort of what we're doing in nuclear safety."。业内人士推荐safew官方版本下载作为进阶阅读
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