[Webkit-unassigned] [Bug 244316] New: TEST ADD (243907 at main): [ macOS wk1 ] imported/w3c/web-platform-tests/html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading.html is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=244316

            Bug ID: 244316
           Summary: TEST ADD (243907 at main): [ macOS wk1 ]
                    imported/w3c/web-platform-tests/html/browsers/browsing
                    -the-web/history-traversal/history-traversal-navigate-
                    parent-while-child-loading.html is a flaky failure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rackler at apple.com

Description:
imported/w3c/web-platform-tests/html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading.html

This test was added at 243907 at main via resync web-platform-tests/html from upstream and has been a flaky failure since its introduction on macOS wk1.

REPRODUCTION STEPS
I can reproduce this on 253737 at main ToT.

Command: 
run-webkit-tests --root 253737 at main -1 --exit-after-n-failures 1 --exit-after-n-crashes-or-timeouts 1 --iterations 50 -f --no-retry imported/w3c/web-platform-tests/html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading.html

Result: 
Unexpected flakiness: text-only failures (1)
  imported/w3c/web-platform-tests/html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading.html [ Failure Pass ]

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fbrowsers%2Fbrowsing-the-web%2Fhistory-traversal%2Fhistory-traversal-navigate-parent-while-child-loading.html&platform=mac&flavor=wk1&limit=50000&recent=false

Diff:
--- /Volumes/Data/worker/Apple-Monterey-Release-WK1-Tests/build/layout-test-results/imported/w3c/web-platform-tests/html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading-expected.txt
+++ /Volumes/Data/worker/Apple-Monterey-Release-WK1-Tests/build/layout-test-results/imported/w3c/web-platform-tests/html/browsers/browsing-the-web/history-traversal/history-traversal-navigate-parent-while-child-loading-actual.txt
@@ -1,4 +1,4 @@


-PASS pushState() in parent while child is doing initial navigation, then go back
+FAIL pushState() in parent while child is doing initial navigation, then go back assert_equals: First history length expected 101 but got 100

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