[Webkit-unassigned] [Bug 230412] New: [Mac iOS] imported/w3c/web-platform-tests/service-workers/service-worker/clients-matchall-client-types.https.html is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=230412

            Bug ID: 230412
           Summary: [Mac iOS]
                    imported/w3c/web-platform-tests/service-workers/servic
                    e-worker/clients-matchall-client-types.https.html is a
                    flaky failure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Service Workers
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ehutchison at apple.com

imported/w3c/web-platform-tests/service-workers/service-worker/clients-matchall-client-types.https.html 

is a flaky failure on Mac and iOS.

History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fservice-workers%2Fservice-worker%2Fclients-matchall-client-types.https.html

Results: https://build.webkit.org/results/Apple-iPadOS-14-Simulator-Release-WK2-Tests/r282630%20(2155)/results.html

Diff: 
--- /Volumes/Data/worker/ipados-simulator-14-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/clients-matchall-client-types.https-expected.txt
+++ /Volumes/Data/worker/ipados-simulator-14-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/clients-matchall-client-types.https-actual.txt
@@ -1,4 +1,4 @@

 PASS Verify matchAll() with window client type
-FAIL Verify matchAll() with {window, sharedworker, worker} client types promise_test: Unhandled rejection with value: object "TypeError: null is not an object (evaluating 'w.port.onmessage = _ => resolve(w)')"
+FAIL Verify matchAll() with {window, sharedworker, worker} client types promise_test: Unhandled rejection with value: object "TypeError: null is not an object (evaluating 'w.port.onmessage = _ => resolve(w);')"

Reproduced test failure locally on r282273 using run-webkit-tests --ios-simulator --iterations 100 --exit-after-n-failures 1 imported/w3c/web-platform-tests/service-workers/service-worker/clients-matchall-client-types.https.html

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