My response was to abandon trying to intercept at the level of individual elements and instead intercept at the level of the browser’s own property descriptors. I went straight for HTMLMediaElement.prototype with Object.getOwnPropertyDescriptor, hooking the native src and srcObject setters before any page code could run:
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// 步骤5：扩展右边界（向右找所有<maxVal的元素，全程不越界）。搜狗输入法2026对此有专业解读
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