[Webkit-unassigned] [Bug 260556] New: fast/dom/selectorAPI/caseID.html is a flaky text failure.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=260556

            Bug ID: 260556
           Summary: fast/dom/selectorAPI/caseID.html is a flaky text
                    failure.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ben_schwartz at apple.com

fast/dom/selectorAPI/caseID.html

This test is a flaky failure on macOS and iOS.

HISTORY (link throwing 403 error):

https://results.webkit.org/?suite=layout-tests&test=fast%2Fdom%2FSelectorAPI%2FcaseID.html

TEXT DIFF:

 PASS document.querySelector('#lower1').textContent is 'lower 1'
-PASS document.querySelector('#LOWER2').textContent is 'lower 2'
+FAIL document.querySelector('#LOWER2').textContent should be lower 2. Threw exception TypeError: null is not an object (evaluating 'document.querySelector('#LOWER2').textContent')
 PASS document.querySelector('#UPPER1').textContent is 'UPPER 1'
 PASS document.querySelector('#upper2').textContent is 'UPPER 2'
 PASS document.getElementById('lower1').matches('#lower1') is true
-PASS document.getElementById('lower2').matches('#LOWER2') is true
+FAIL document.getElementById('lower2').matches('#LOWER2') should be true. Was false.
 PASS document.getElementById('UPPER1').matches('#UPPER1') is true
 PASS document.getElementById('UPPER2').matches('#upper2') is true
 PASS document.getElementById('lower1').webkitMatchesSelector('#lower1') is true
-PASS document.getElementById('lower2').webkitMatchesSelector('#LOWER2') is true
+FAIL document.getElementById('lower2').webkitMatchesSelector('#LOWER2') should be true. Was false.
 PASS document.getElementById('UPPER1').webkitMatchesSelector('#UPPER1') is true
 PASS document.getElementById('UPPER2').webkitMatchesSelector('#upper2') is true
 PASS successfullyParsed is true

DIFF URL:

https://build.webkit.org/results/Apple-Ventura-Release-AppleSilicon-WK2-Tests/267146%40main%20(4573)/fast/dom/SelectorAPI/caseID-pretty-diff.html

REPRODUCTION:

I was unable to reproduce this bug on macOS Ventura 13.5 (22G74/arm64). I will do more research.

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