Bug 225592 - REGRESSION(r275515): wpt/css/CSS2/text/white-space-mixed-001.xht (invalidation?)
Summary: REGRESSION(r275515): wpt/css/CSS2/text/white-space-mixed-001.xht (invalidation?)
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL: http://wpt.live/css/CSS2/text/white-s...
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2021-05-10 05:40 PDT by Sam Sneddon [:gsnedders]
Modified: 2021-05-17 05:41 PDT (History)
5 users (show)

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Description Sam Sneddon [:gsnedders] 2021-05-10 05:40:35 PDT 
Via STP124 regressing this on wpt.fyi.

Seems to be an invalidation bug of some sort, as selecting the text makes it redraw correctly.
Comment 1 Sam Sneddon [:gsnedders] 2021-05-10 05:44:53 PDT 
http://wpt.live/css/css-backgrounds/box-shadow-overlapping-001.html possibly the same invalidation issue? (not filing a bug for now to avoid too much bug spam!)
Comment 2 zalan 2021-05-10 08:17:45 PDT 
oh I remember this one. Now we match FF and Chrome.
Comment 3 zalan 2021-05-10 08:18:06 PDT 
(In reply to Sam Sneddon [:gsnedders] from comment #1)
> http://wpt.live/css/css-backgrounds/box-shadow-overlapping-001.html possibly
> the same invalidation issue? (not filing a bug for now to avoid too much bug
> spam!)
This is a different one. We should bail out on box-shadow. It's not yet supported by LFC.
Comment 4 Alexey Proskuryakov 2021-05-10 14:43:57 PDT 
But Chrome and Firefox doesn't change the rendering on selection.

Still, perhaps a partial progression, so is there some action that this bug tracks at this point?
Comment 5 zalan 2021-05-10 15:13:50 PDT 
(In reply to Alexey Proskuryakov from comment #4)
> But Chrome and Firefox doesn't change the rendering on selection.
That's because selection puts you back to the legacy line layout which I did not fix (so the rendering is fine as long as it goes through the new line layout code)
Comment 6 zalan 2021-05-10 15:36:47 PDT 
(In reply to Alexey Proskuryakov from comment #4)
> But Chrome and Firefox doesn't change the rendering on selection.
> 
> Still, perhaps a partial progression, so is there some action that this bug
> tracks at this point?
The action would be to fix this for legacy line layout.
Comment 7 Radar WebKit Bug Importer 2021-05-17 05:41:19 PDT 
<rdar://problem/78101785>