[Webkit-unassigned] [Bug 187658] New: Layout Test http/tests/security/bypassing-cors-checks-for-extension-urls.html is Flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=187658

            Bug ID: 187658
           Summary: Layout Test
                    http/tests/security/bypassing-cors-checks-for-extensio
                    n-urls.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: tsavell at apple.com
                CC: lforschler at apple.com

The following layout test is failing on Sierra and High Sierra WK2

http/tests/security/bypassing-cors-checks-for-extension-urls.html

Probable cause:

Investigating further. The test just became flakey on 7/12/18 and around r233780. Investigating further but at this time I am not certain what revision started the flakiness. What I can gather is that the test is no longer reliably receiving two console messages at the start of the output. 

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2Fsecurity%2Fbypassing-cors-checks-for-extension-urls.html


diff text:

--- /Volumes/Data/slave/highsierra-release-tests-wk2/build/layout-test-results/http/tests/security/bypassing-cors-checks-for-extension-urls-expected.txt
+++ /Volumes/Data/slave/highsierra-release-tests-wk2/build/layout-test-results/http/tests/security/bypassing-cors-checks-for-extension-urls-actual.txt
@@ -1,5 +1,3 @@
-CONSOLE MESSAGE: line 19: Cross origin requests are only supported for HTTP.
-CONSOLE MESSAGE: line 19: XMLHttpRequest cannot load safari-extension://test1 due to access control checks.
 This test ensures that XHR/Fetch will bypass CORS for user extension URLS in case the page is running user scripts.

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