[Webkit-unassigned] [Bug 227532] Styles or Ordering Incorrect when Scrolling Quickly With Large Compositing Layer

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=227532

--- Comment #2 from Kerry <kerryliu at gmail.com> ---
(In reply to Simon Fraser (smfr) from comment #1)
> This is tiled layer flashing. Odd that it only happens with scroll wheel
> mice; I can't reproduce with mine.

This also triggers for me if we add a number of scroll calls in dev console "for ( i =0; i<100000; i++) { document.querySelector('.scrollable').scroll( { top: i } ); }" then trigger a scroll from user input (say touchpad or mouse).

It should look like this:
https://user-images.githubusercontent.com/1270189/123999138-07d2cd00-d987-11eb-8805-0c4fd1a864a3.mp4

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20210630/361a84e9/attachment.htm>