[Webkit-unassigned] [Bug 181166] New: Layout Test imported/w3c/web-platform-tests/service-workers/service-worker/register-same-scope-different-script-url.https.html is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=181166

            Bug ID: 181166
           Summary: Layout Test
                    imported/w3c/web-platform-tests/service-workers/servic
                    e-worker/register-same-scope-different-script-url.http
                    s.html is flaky
           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: jlewis3 at apple.com
                CC: cdumez at apple.com, youennf at gmail.com

The following layout test is flaky on WK2

imported/w3c/web-platform-tests/service-workers/service-worker/register-same-scope-different-script-url.https.html

Probable cause:

https://trac.webkit.org/changeset/226274/webkit

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2Fservice-workers%2Fservice-worker%2Fregister-same-scope-different-script-url.https.html


This test recently became extremely flaky. 

https://build.webkit.org/results/Apple%20High%20Sierra%20Release%20WK2%20(Tests)/r226294%20(1953)/results.html
https://build.webkit.org/builders/Apple%20High%20Sierra%20Release%20WK2%20(Tests)/builds/1953

--- /Volumes/Data/slave/highsierra-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/register-same-scope-different-script-url.https-expected.txt
+++ /Volumes/Data/slave/highsierra-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/register-same-scope-different-script-url.https-actual.txt
@@ -1,7 +1,9 @@
+
+Harness Error (TIMEOUT), message = null

 PASS Register different scripts concurrently 
 PASS Register then register new script URL 
 PASS Register then register new script URL that 404s 
 FAIL Register then register new script that does not install assert_unreached: unexpected rejection: assert_equals: on redundant, installing should be null expected null but got object "[object ServiceWorker]" Reached unreachable code
-PASS Register same-scope new script url effect on controller 
+TIMEOUT Register same-scope new script url effect on controller Test timed out

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