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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - REGRESSION (iOS 9): Touchstart event on dom will delay requestAnimationFrame execution and causes drop frame"
href="https://bugs.webkit.org/show_bug.cgi?id=149578#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - REGRESSION (iOS 9): Touchstart event on dom will delay requestAnimationFrame execution and causes drop frame"
href="https://bugs.webkit.org/show_bug.cgi?id=149578">bug 149578</a>
from <span class="vcard"><a class="email" href="mailto:yjhatfdu@gmail.com" title="yjhatfdu@gmail.com">yjhatfdu@gmail.com</a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=149578#c2">comment #2</a>)
<span class="quote">> Do you have a web page that demonstrates this?</span >
Please try this <a href="https://m.tianyi9.com/tests/touchtest/index.html">https://m.tianyi9.com/tests/touchtest/index.html</a>.
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(<a href="https://m.tianyi9.com">https://m.tianyi9.com</a>) drop frame heavily under iOS9.</pre>
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