[Webkit-unassigned] [Bug 206834] New: [ Macos iOS ] http/tests/workers/service/basic-timeout.https.html is flaky failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=206834

            Bug ID: 206834
           Summary: [ Macos iOS ]
                    http/tests/workers/service/basic-timeout.https.html is
                    flaky failing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jacob_uphoff at apple.com

http/tests/workers/service/basic-timeout.https.html is flakey failing on macOS and iOS 

I was able to reproduce the failure by running the test in iterations x5000, it reproduced multiple times.

The test has been flaky for the whole visible history, so no regression point.

History:
https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fworkers%2Fservice%2Fbasic-timeout.https.html&platform=ios&platform=mac

Diff:

--- /Volumes/Data/slave/ios-simulator-13-release-tests-wk2/build/layout-test-results/http/tests/workers/service/basic-timeout.https-expected.txt
+++ /Volumes/Data/slave/ios-simulator-13-release-tests-wk2/build/layout-test-results/http/tests/workers/service/basic-timeout.https-actual.txt
@@ -2,9 +2,9 @@
 URL 0 - https://127.0.0.1:8443/workers/service/resources/timeout-fallback.html
 Status code 0 - 200
 Source' header 0 - null
-URL 1 - https://127.0.0.1:8443/workers/service/resources/timeout-no-fallback.html
-Status code 1 - 404
-Source' header 1 - null
+URL 1 - undefined
+Status code 1 - undefined
+Source' header 1 - undefined
 URL 2 - https://127.0.0.1:8443/workers/service/resources/succeed-fallback-check.php
 Status code 2 - 200
 Source' header 2 - network

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