[Webkit-unassigned] [Bug 272889] CSS Highlights API poor performance compared to Chrome

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=272889

--- Comment #5 from Anthony Ricaud <rik at webkit.org> ---
> Once all the code is highlighted the scrolling is working fine.

I notice a big difference in scrolling behaviour:

With the focus outside the contenteditable area, going from the top to the bottom of the page (or vice versa, with Home/End keys) is pretty quick but with a flash of white screen.

With the focus inside the contenteditable area, the same action takes tens of seconds.

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