Bug 277897 – Regression: 282030@main? [ iOS 17 Release ] imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-inline-004.html is a flaky text failure

• Component: Layout and Rendering
• Status: NEW

[Dawn Morningstar]

imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-inline-004.html [ Pass Failure ]
This test is a flaky failure on iOS17 Release, though it's not failing on iPad or Debug. This looks to have started with 282030@main. 

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-anchor-position%2Fanchor-position-inline-004.html&platform=ios

Diff:
--- /Volumes/Data/worker/Apple-iOS-17-Simulator-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-inline-004-expected.txt
+++ /Volumes/Data/worker/Apple-iOS-17-Simulator-Release-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-inline-004-actual.txt
@@ -15,7 +15,9 @@
 FAIL .target 4 assert_equals:
 <span class="target target1-size" data-offset-x="50" data-offset-y="10" data-expected-width="20" data-expected-height="10"></span>
 width expected 20 but got 0
-PASS .target 5
+FAIL .target 5 assert_equals:
+<span class="target target1-pos" data-offset-x="50" data-offset-y="10" data-expected-width="20" data-expected-height="10"></span>
+width expected 20 but got 210
 FAIL .target 6 assert_equals:
 <span class="target target1-size" data-offset-x="50" data-offset-y="10" data-expected-width="20" data-expected-height="10"></span>
 width expected 20 but got 0

Diff-url:
https://build.webkit.org/results/Apple-iOS-17-Simulator-Release-WK2-Tests/282069%40main%20(4766)/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-inline-004-diff.txt

Test-run:
https://build.webkit.org/results/Apple-iOS-17-Simulator-Release-WK2-Tests/282069%40main%20(4766)/results.html

[Radar WebKit Bug Importer]

<rdar://problem/133589549>

[Dawn Morningstar]

Pull request: https://github.com/WebKit/WebKit/pull/31982

[EWS]

Test gardening commit 282072@main (c09320b0a1f5): <https://commits.webkit.org/282072@main>

Reviewed commits have been landed. Closing PR #31982 and removing active labels.