Shadow DOM is a web component feature that lets you attach an isolated DOM subtree to any HTML element, hidden from the main document’s standard queries. A querySelector('audio') on the main document cannot see inside a Shadow Root unless you specifically traverse into it. If fermaw’s player was mounted inside a Shadow Root, basic DOM searches would come up empty.
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2021 年是长春高新的分水岭。
玩法四：8:1 超长图，无限拓展的画布，更多细节参见谷歌浏览器【最新下载地址】