[Webkit-unassigned] [Bug 207847] New: REGRESSION: (r256232?) [ Mac wk1 Release ] resize-observer/delete-observers-in-callbacks.html is flaky failing.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=207847

            Bug ID: 207847
           Summary: REGRESSION: (r256232?) [ Mac wk1 Release ]
                    resize-observer/delete-observers-in-callbacks.html is
                    flaky failing.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Macintosh
                OS: macOS 10.14
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Lawrence.j at apple.com

resize-observer/delete-observers-in-callbacks.html

Description:
This test is flaky failing on Mac wk1 Release. The first recorded failure appears to be at r256232.

History:
https://results.webkit.org/?limit=50000&suite=layout-tests&test=resize-observer%2Fdelete-observers-in-callbacks.html&platform=mac


Diff:
--- /Volumes/Data/slave/catalina-release-tests-wk1/build/layout-test-results/resize-observer/delete-observers-in-callbacks-expected.txt
+++ /Volumes/Data/slave/catalina-release-tests-wk1/build/layout-test-results/resize-observer/delete-observers-in-callbacks-actual.txt
@@ -1,5 +1,5 @@
 t1

-PASS ResizeObserver implemented 
-PASS Test deleting observer in callbacks 
+FAIL ResizeObserver implemented assert_own_property: expected property "ResizeObserver" missing
+FAIL Test deleting observer in callbacks promise_test: Unhandled rejection with value: object "ReferenceError: Can't find variable: ResizeObserver"

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