Bug 298962 – REGRESSION(299374@main): [ iOS ] imported/w3c/web-platform-tests/html/browsers/browsing-the-web/overlapping-navigations-and-traversals/cross-document-traversal-cross-document-traversal.html is a constant failure

• Status: NEW
• Component: New Bugs

[Bryan Medina]

imported/w3c/web-platform-tests/html/browsers/browsing-the-web/overlapping-navigations-and-traversals/cross-document-traversal-cross-document-traversal.html

is a constant failure occurring on iOS Debug and a flaky failure on iOS Release

HISTORY:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fbrowsers%2Fbrowsing-the-web%2Foverlapping-navigations-and-traversals%2Fcross-document-traversal-cross-document-traversal.html

TEXT DIFF:
--- /Volumes/Data/worker/Apple-iOS-18-Simulator-Debug-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/html/browsers/browsing-the-web/overlapping-navigations-and-traversals/cross-document-traversal-cross-document-traversal-expected.txt
+++ /Volumes/Data/worker/Apple-iOS-18-Simulator-Debug-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/html/browsers/browsing-the-web/overlapping-navigations-and-traversals/cross-document-traversal-cross-document-traversal-actual.txt
@@ -1,5 +1,5 @@
 
-PASS cross-document traversals in opposite directions: the result is going nowhere
+FAIL cross-document traversals in opposite directions: the result is going nowhere assert_unreached: second load event Reached unreachable code
 PASS cross-document traversals in opposite directions, second traversal invalid at queuing time but valid at the time it is run: the result is going nowhere
 FAIL cross-document traversals in the same (back) direction: the result is going -2 with only one load event assert_equals: first load event must be going back expected "?1" but got "?2"
 FAIL cross-document traversals in the same (forward) direction: the result is going +2 with only one load event assert_equals: first load event must be going forward expected "?3" but got "?2"

TEXT DIFF URL:
https://build.webkit.org/results/Apple-iOS-18-Simulator-Debug-WK2-Tests/300020@main%20(1648)/imported/w3c/web-platform-tests/html/browsers/browsing-the-web/overlapping-navigations-and-traversals/cross-document-traversal-cross-document-traversal-diff.txt

[Bryan Medina]

I was able to reproduce this text failure locally on my device running iOS 18 Simulator Debug ToT using the following command:

run-webkit-tests imported/w3c/web-platform-tests/html/browsers/browsing-the-web/overlapping-navigations-and-traversals/cross-document-traversal-cross-document-traversal.html --iOS-simulator --debug

[Radar WebKit Bug Importer]

<rdar://problem/160699746>

[Bryan Medina]

It looks like this test started to fail constantly after a WPT import at 299374@main, which I also confirmed through testing using the reproduction steps above. Referring to the history and through reproduction, this test was passing at 299372@main, but failed at 299374@main. At this time, I believe the regression point is 299374@main.

[EWS]

Test gardening commit 300039@main (f575c4dc030f): <https://commits.webkit.org/300039@main>

Reviewed commits have been landed. Closing PR #50814 and removing active labels.