[Webkit-unassigned] [Bug 188070] New: Layout Test imported/w3c/web-platform-tests/streams/piping/error-propagation-backward.html is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=188070

            Bug ID: 188070
           Summary: Layout Test
                    imported/w3c/web-platform-tests/streams/piping/error-p
                    ropagation-backward.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: David_fenton at apple.com
                CC: lforschler at apple.com

The following layout test is flaky on Mac (Release, Debug, WK1, WK2)

imported/w3c/web-platform-tests/streams/piping/error-propagation-backward.html

Probable cause:

Unknown, will attempt to repro locally.

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2Fstreams%2Fpiping%2Ferror-propagation-backward.html
--- /Volumes/Data/slave/highsierra-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/streams/piping/error-propagation-backward-expected.txt
+++ /Volumes/Data/slave/highsierra-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/streams/piping/error-propagation-backward-actual.txt
@@ -1,4 +1,4 @@
-CONSOLE MESSAGE: line 12: Unhandled Promise Rejection: error2: error2!
+CONSOLE MESSAGE: Unhandled Promise Rejection: error2: error2!
 CONSOLE MESSAGE: Unhandled Promise Rejection: error1: error1!

 Harness Error (FAIL), message = error1!

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