(In reply to Boris Chiou [:boris] from comment #26) > Brian, do you have any concerns about "not fulfill animation.ready (and finish?) for OOP iframe when out of the viewport"? I can file a spec issue in Web-animations API if you prefer this way. To be precise s/OOP iframe/any iframes/.
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(In reply to Boris Chiou [:boris] from comment #26) > Brian, do you have any concerns about "not fulfill animation.ready (and finish?) for OOP iframe when out of the viewport"? I can file a spec issue in Web-animations API if you prefer this way. To be precise s/OOP iframe/any iframes/, which means any animation will never be generated in such cases I assume just like CSS animations in display:none subtree. Hmm, that means we also need to stop any animations once after the animations get in the situation? that's kind of annoying.