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.
新版 Flow 也引入了类似 Photoshop 的套索工具，我们可以圈选视频里的某一块区域，然后直接告诉 AI，「把这个人移走」或者「水里加几条锦鲤」等更精细化的控制
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Mahjong, Sudoku, free crossword, and more: Play games on Mashable。服务器推荐是该领域的重要参考