Bug 221349 – REGRESSION (r272300): [macOS iOS] imported/w3c/web-platform-tests/css/css-scoping/css-scoping-shadow-dynamic-remove-style-detached.html is failing

• Status: RESOLVED
• Resolution: CONFIGURATION CHANGED
• Component: CSS

[Ryan Haddad]

After https://trac.webkit.org/changeset/272300/webkit landed, imported/w3c/web-platform-tests/css/css-scoping/css-scoping-shadow-dynamic-remove-style-detached.html has started consistently failing on iOS and macOS bots:

--- /Volumes/Data/slave/ios-simulator-14-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/css/css-scoping/css-scoping-shadow-dynamic-remove-style-detached-expected.txt
+++ /Volumes/Data/slave/ios-simulator-14-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/css/css-scoping/css-scoping-shadow-dynamic-remove-style-detached-actual.txt
@@ -1,3 +1,3 @@
 
-PASS Invalidation of style data while ShadowRoot is disconnected.
+FAIL Invalidation of style data while ShadowRoot is disconnected. assert_not_equals: got disallowed value "rgb(255, 0, 0)"
 

https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-scoping%2Fcss-scoping-shadow-dynamic-remove-style-detached.html

[Ryan Haddad]

This test was already marked as a flaky failure for macOS: https://bugs.webkit.org/show_bug.cgi?id=215039

[Ryan Haddad]

I reverted the responsible change in https://trac.webkit.org/changeset/272336

[Radar WebKit Bug Importer]

<rdar://problem/73944864>