[Webkit-unassigned] [Bug 180989] New: Regression (225864): Layout Test imported/w3c/web-platform-tests/service-workers/service-worker/registration-mime-types.https.html is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=180989

            Bug ID: 180989
           Summary: Regression (225864): Layout Test
                    imported/w3c/web-platform-tests/service-workers/servic
                    e-worker/registration-mime-types.https.html is flaky
           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: jlewis3 at apple.com
                CC: cdumez at apple.com, lforschler at apple.com

The following layout test is flaky on macOS Debug WK2

imported/w3c/web-platform-tests/service-workers/service-worker/registration-mime-types.https.html

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2Fservice-workers%2Fservice-worker%2Fregistration-mime-types.https.html

Diff:
--- /Volumes/Data/slave/highsierra-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/registration-mime-types.https-expected.txt
+++ /Volumes/Data/slave/highsierra-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/registration-mime-types.https-actual.txt
@@ -1,3 +1,5 @@
+
+Harness Error (TIMEOUT), message = null

 PASS Registering script with no MIME type 
 PASS Registering script with bad MIME type 
@@ -34,5 +36,5 @@
 PASS Registering script with good MIME type text/x-ecmascript 
 PASS Registering script that imports script with good MIME type text/x-ecmascript 
 PASS Registering script with good MIME type text/x-javascript 
-PASS Registering script that imports script with good MIME type text/x-javascript 
+TIMEOUT Registering script that imports script with good MIME type text/x-javascript Test timed out

Looks to have become flaky again after: https://trac.webkit.org/changeset/225864/webkit

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