Regression (r284821) : [ iOS 15 ] fast/events/ios/submit-form-target-blank-using-return-key.html is a timeout

fast/events/ios/submit-form-target-blank-using-return-key.html

Is constantly timing out on iOS 15.

History: https://results.webkit.org/?suite=layout-tests&test=fast%2Fevents%2Fios%2Fsubmit-form-target-blank-using-return-key.html

Result page: https://build.webkit.org/results/Apple-iOS-15-Simulator-Release-WK2-Tests/r284857%20(317)/results.html

Diff: 

--- /Volumes/Data/worker/ios-simulator-15-release-tests-wk2/build/layout-test-results/fast/events/ios/submit-form-target-blank-using-return-key-expected.txt
+++ /Volumes/Data/worker/ios-simulator-15-release-tests-wk2/build/layout-test-results/fast/events/ios/submit-form-target-blank-using-return-key-actual.txt
@@ -1,10 +1,11 @@
+CONSOLE MESSAGE: TypeError: null is not an object (evaluating 'window.opener.done')
+FAIL: Timed out waiting for notifyDone to be called
+
 Tests that pressing the Return key in a text field with an associated form implicitly submits the form. To run this test by hand, focus the text field below and press the Return key.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
+
 PASS event.key is "Enter"
-PASS successfullyParsed is true
 
-TEST COMPLETE
-

[Radar WebKit Bug Importer]

<rdar://problem/84664487>

I was able to reproduce the timeout locally using run-webkit-tests --ios-simulator fast/events/ios/submit-form-target-blank-using-return-key.html.

The test timed out with r284821 and passed with r284820.

[Chris Dumez]

Committed r284872 (243549@main): <https://commits.webkit.org/243549@main>