The V3 approach obliterates this race condition by hooking addSourceBuffer at the MediaSource.prototype level, I intercept the creation of every SourceBuffer. The moment a buffer is created and returned, I immediately install a hooked appendBuffer directly on that specific instance; before any page code can even see the instance, let alone cache a reference to its methods. The hooked appendBuffer is installed as an own property of the instance, which takes precedence over the prototype chain. There is no window for fermaw to cache the original. The hook is always first.
subtotals by document type), and deposited the check in an appropriate sorter
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* 核心功能：每次调用next(val)，返回当前价格的跨度（往回数≤当前价格的最大连续天数），推荐阅读快连下载-Letsvpn下载获取更多信息
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