Bug 235135 - css/css-transitions/transition-base-response-002.html is a unique failure
Summary: css/css-transitions/transition-base-response-002.html is a unique failure
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: Animations (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Antoine Quint
URL:
Keywords: InRadar
Depends on: 252506
Blocks: 235130
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Reported: 2022-01-12 12:17 PST by Antoine Quint
Modified: 2023-02-18 03:22 PST (History)
3 users (show)

See Also:

Attachments
Reduction (289 bytes, text/html)
2023-02-17 07:23 PST, Antoine Quint 		no flags Details
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Description Antoine Quint 2022-01-12 12:17:05 PST 
WebKit has some unique failures for css/css-transitions/transition-base-response-002.html. See https://wpt.fyi/results/css/css-transitions/transition-base-response-002.html?label=experimental&label=master&aligned.
Comment 1 Radar WebKit Bug Importer 2022-01-19 12:21:47 PST 
<rdar://problem/87785135>
Comment 2 Antoine Quint 2023-02-17 07:22:40 PST 
We're failing because we're transitioning from 13px to 20px instead of 10px to 20px for the font-size on :root.
Comment 3 Antoine Quint 2023-02-17 07:23:43 PST 
Created attachment 465055 [details]
Reduction

I've reduced the issue to the attached file which shows that WebKit is the only engine that yields a transition because it appears to have an underlying style applied before the :root selector is resolved.
Comment 4 Antoine Quint 2023-02-17 14:36:04 PST 
Pull request: https://github.com/WebKit/WebKit/pull/10304
Comment 5 Antoine Quint 2023-02-17 15:03:16 PST 
Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/38577
Comment 6 EWS 2023-02-18 03:21:59 PST 
Committed 260506@main (b950a86d454a): <https://commits.webkit.org/260506@main>

Reviewed commits have been landed. Closing PR #10304 and removing active labels.