FrameSet and HTML5 Video on iPad / iPhone - Video breaks out of frame?

I'm using an HTML5 <video> player on a page that is displayed withing a frame. My player breaks out of the frame and is visible on top of the other frames. Any ways of fixing this issue?

I've 开发者_如何学运维made a "screenshot" of the problem:

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The frame element is no longer valid in HTML5. The recommendation is to use the iframe element instead. If you must.