Bug 214682 – REGRESSION (r264522): [ macOS release wk2 macOS wk1 ] imported/w3c/web-platform-tests/css/cssom/stylesheet-same-origin.sub.html is a flaky failure

• Status: RESOLVED
• Resolution: FIXED
• Component: New Bugs

[Karl Rackler]

Description:
imported/w3c/web-platform-tests/css/cssom/stylesheet-same-origin.sub.html

This is started approximately 07/17/20 and has been flaky fail every day since.

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcssom%2Fstylesheet-same-origin.sub.html&flavor=wk2&platform=mac&limit=50000&style=release

Diff:
--- /Volumes/Data/slave/catalina-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/css/cssom/stylesheet-same-origin.sub-expected.txt
+++ /Volumes/Data/slave/catalina-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/css/cssom/stylesheet-same-origin.sub-actual.txt
@@ -1,5 +1,6 @@
 Blocked access to external URL http://www1.localhost:8801/css/cssom/stylesheet-same-origin.css
 Blocked access to external URL http://www1.localhost:8801/common/redirect.py?location=http://localhost:8800/css/cssom/stylesheet-same-origin.css
+Blocked access to external URL http://www1.localhost:8801/css/cssom/stylesheet-same-origin.css
 Blocked access to external URL http://www1.localhost:8801/css/cssom/stylesheet-same-origin.css
 Blocked access to external URL http://www1.localhost:8801/common/redirect.py?location=http://localhost:8800/css/cssom/stylesheet-same-origin.css
 Blocked access to external URL http://www1.localhost:8801/css/cssom/stylesheet-same-origin.css

[Radar WebKit Bug Importer]

<rdar://problem/65985679>

[Karl Rackler]

I have marked these tests as failing while this issue is investigated.
https://trac.webkit.org/changeset/264755/webkit

[Ryan Haddad]

This test was modified in the CSS WPT resync in https://trac.webkit.org/changeset/264522/webkit, so that probably introduced the flakiness.

[Karl Rackler]

This issue is happening on macOS wk1 as well.

[ macOS wk1 ] imported/w3c/web-platform-tests/css/cssom/stylesheet-same-origin.sub.html is a flaky failure

Description:
imported/w3c/web-platform-tests/css/cssom/stylesheet-same-origin.sub.html

This test was modified in the CSS WPT resync in https://trac.webkit.org/changeset/264522/webkit, so that probably introduced the flakiness.

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcssom%2Fstylesheet-same-origin.sub.html&platform=mac&flavor=wk1&limit=50000

Diff:
--- /Volumes/Data/worker/macOS-Mojave-Debug-WK1-Tests-EWS/build/layout-test-results/imported/w3c/web-platform-tests/css/cssom/stylesheet-same-origin.sub-expected.txt
+++ /Volumes/Data/worker/macOS-Mojave-Debug-WK1-Tests-EWS/build/layout-test-results/imported/w3c/web-platform-tests/css/cssom/stylesheet-same-origin.sub-actual.txt
@@ -1,5 +1,6 @@
 Blocked access to external URL http://www1.localhost:8801/css/cssom/stylesheet-same-origin.css
 Blocked access to external URL http://www1.localhost:8801/common/redirect.py?location=http://localhost:8800/css/cssom/stylesheet-same-origin.css
+Blocked access to external URL http://www1.localhost:8801/css/cssom/stylesheet-same-origin.css
 Blocked access to external URL http://www1.localhost:8801/css/cssom/stylesheet-same-origin.css
 Blocked access to external URL http://www1.localhost:8801/common/redirect.py?location=http://localhost:8800/css/cssom/stylesheet-same-origin.css
 Blocked access to external URL http://www1.localhost:8801/css/cssom/stylesheet-same-origin.css

[Karl Rackler]

I have marked macOS wk1 test as failing while this issue is investigated.
https://trac.webkit.org/changeset/265015/webkit

[Eric Hutchison]

Issue also occurring on Mac wk2 debug. Marked expectations: https://trac.webkit.org/changeset/282558/webkit

[Chris Dumez]

Pull request: https://github.com/WebKit/WebKit/pull/50341

[EWS]

Committed 299612@main (22996171b547): <https://commits.webkit.org/299612@main>

Reviewed commits have been landed. Closing PR #50341 and removing active labels.