1971808 - [wpt-sync] Sync PR 53055 - Don't cancel running transitions when transition property changes.

Status: NEW

(Core :: CSS Parsing and Computation, task, P4)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 53055 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/53055
Details from upstream follow.

Robert Flack <[e-mail]> wrote:

Don't cancel running transitions when transition property changes.

Changes to transition properties are only supposed to affect newly
started transitions. Already running animations should continue with
the previous duration.

Bug: 41442840
Change-Id: I091d97e381df361e7450f88d02ac4843a08d6284
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6633872
Reviewed-by: Kevin Ellis \<[e-mail]>
Auto-Submit: Robert Flack \<[e-mail]>
Commit-Queue: Kevin Ellis \<[e-mail]>
Cr-Commit-Position: refs/heads/main@{#1472049}

Comment 1

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Pushed to try (stability) https://treeherder.mozilla.org/#/jobs?repo=try&revision=ba481be24493d67b141af4306bb1d9f4c28697b1

Comment 2

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

CI Results

Ran 8 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 2 tests and 2 subtests

Status Summary

Firefox

OK : 2
FAIL: 4

Chrome

OK : 2
PASS: 4

Safari

OK : 2
PASS: 4

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

Details

Firefox-only Failures

• /css/css-anchor-position/position-try-transition-basic.html [wpt.fyi]
  • Transition when @position-try is applied: FAIL
  • Transition when @position-try is unapplied: FAIL
• /css/css-anchor-position/position-try-transition-flip.html [wpt.fyi]
  • Transition to a flipped state: FAIL
  • Transition to an unflipped state: FAIL

New Tests That Don't Pass

• /css/css-anchor-position/position-try-transition-basic.html [wpt.fyi]
  • Transition when @position-try is applied: FAIL (Chrome: PASS, Safari: PASS)
  • Transition when @position-try is unapplied: FAIL (Chrome: PASS, Safari: PASS)
• /css/css-anchor-position/position-try-transition-flip.html [wpt.fyi]
  • Transition to a flipped state: FAIL (Chrome: PASS, Safari: PASS)
  • Transition to an unflipped state: FAIL (Chrome: PASS, Safari: PASS)