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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.
，这一点在体育直播中也有详细论述
而且，在当今小红书、抖音被当成百度用的时代，80%-90%的年轻人会通过其获取旅行灵感，平台上“独行攻略”“安全指南”相关内容超200万条，可信度远超传统广告。
从品类来看，分化趋势明显。魔镜洞察数据显示，AI教辅益智类产品增长474%，而以毛绒类产品为代表的AI潮玩，增速更是达到799.7%。
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