[Webkit-unassigned] [Bug 149578] REGRESSION (iOS 9): Touchstart event on dom will delay requestAnimationFrame execution and causes drop frame

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=149578

--- Comment #3 from yjhatfdu at gmail.com ---
(In reply to comment #2)
> Do you have a web page that demonstrates this?

Please try this https://m.tianyi9.com/tests/touchtest/index.html.
If you touch on the screen in iOS9, the animation will drop frame. And this works much better in iOS8. I even didn't add an event handler to touch events. This bug makes my html5 music game(https://m.tianyi9.com) drop frame heavily under iOS9.

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