Bug 232184 – Regression (r284610?): [ iOS BigSur wk2 ]imported/w3c/web-platform-tests/html/cross-origin-opener-policy/coop-csp-sandbox.https.html is a flaky failure

• Component: New Bugs
• Status: RESOLVED FIXED

imported/w3c/web-platform-tests/html/cross-origin-opener-policy/coop-csp-sandbox.https.html

Is flaky failing on iOS 15 and Big Sur wk2 Debug.

History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fcross-origin-opener-policy%2Fcoop-csp-sandbox.https.html

Result page: https://build.webkit.org/results/Apple-iOS-15-Simulator-Release-WK2-Tests/r284693%20(274)/results.html

Diff:

--- /Volumes/Data/worker/ios-simulator-15-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/cross-origin-opener-policy/coop-csp-sandbox.https-expected.txt
+++ /Volumes/Data/worker/ios-simulator-15-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/cross-origin-opener-policy/coop-csp-sandbox.https-actual.txt
@@ -1,5 +1,3 @@
-CONSOLE MESSAGE: Navigation was blocked by Cross-Origin-Opener-Policy
-CONSOLE MESSAGE: Navigation was blocked by Cross-Origin-Opener-Policy
 
 PASS CSP: sandbox allow-popups allow-scripts allow-same-origin; CSP sandboxed Cross-Origin-Opener-Policy popup should result in a network error
 PASS CSP: sandbox allow-popups allow-scripts; CSP sandboxed Cross-Origin-Opener-Policy popup should result in a network error

[Radar WebKit Bug Importer]

<rdar://problem/84567378>

I was not able to reproduce the failure locally on iOS 15 sim using run-webkit-tests --ios-simulator --iterations 50 --exit-after-n-failures 1 imported/w3c/web-platform-tests/html/cross-origin-opener-policy/coop-csp-sandbox.https.html7

According to the history, it looks like the test started being flaky somewhere between  r284607 and r284625.

The changes in https://trac.webkit.org/changeset/284610/webkit seems to be related.

[Chris Dumez]

Committed r284724 (243436@main): <https://commits.webkit.org/243436@main>