[Webkit-unassigned] [Bug 215215] REGRESSION (r260276): instructure.com custom PDF viewer stops scrolling / loading after switching to another tab then switching back

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=215215

Simon Fraser (smfr) <simon.fraser at apple.com> changed:

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--- Comment #3 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
Comment on attachment 406165
  --> https://bugs.webkit.org/attachment.cgi?id=406165
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=406165&action=review

> LayoutTests/scrollingcoordinator/overflow-proxy-reattach.html:21
> +    await new Promise(requestAnimationFrame);

await UIHelper.animationFrame() ?

Note that returns on the microtask checkpoint at the end of the rAF callback; it doesn't wait for the end of Page::updateRendering().

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