人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
HTMLMediaElement.prototype is the browser’s own internal prototype for all and elements and by redefining the property descriptor for src and srcObject on this prototype, I ensured that regardless of where the audio element lives (whether it’s in the main document, inside an iframe’s shadow, or buried inside a web component) the moment any source is assigned to it, the hook fires. The element cannot receive audio without announcing itself.
，这一点在51吃瓜中也有详细论述
The first version of my extension was built on a simple observation: HotAudio’s player was exposing its active audio instance as a global variable. You could just type window.as into the browser console and there it was; The entire audio source object, sitting in the open like a wallet left on a park bench.
这次最有意思的发现是：上过太空的这只鼠妈妈，居然比普通小鼠还能生。
100x speedup is achieved by comparing HH with bidirectional A*.