Bug 228751

Summary:	REGRESSION (r280504): [ iPad ] imported/w3c/web-platform-tests/html/dom/idlharness.https.html is a consistent failure
Product:	WebKit	Reporter:	Eric Hutchison <ehutchison>
Component:	DOM	Assignee:	Eric Hutchison <ehutchison>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	ap, cdumez, ehutchison, tsavell, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Eric Hutchison 2021-08-03 13:21:27 PDT

imported/w3c/web-platform-tests/html/dom/idlharness.https.html

is a flaky failure on iPad.

History: https://results.webkit.org/?platform=mac&platform=ios&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fdom%2Fidlharness.https.html

Results: https://build.webkit.org/results/Apple-iPadOS-14-Simulator-Release-WK2-Tests/r280504%20(1683)/results.html

Diff:
--- /Volumes/Data/worker/ipados-simulator-14-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/dom/idlharness.https-expected.txt
+++ /Volumes/Data/worker/ipados-simulator-14-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/dom/idlharness.https-actual.txt
@@ -4484,7 +4484,7 @@
 PASS Window interface: attribute onunload
 PASS Window interface: attribute origin
 PASS Window interface: attribute isSecureContext
-FAIL Window interface: attribute crossOriginIsolated assert_own_property: The global object must have a property "crossOriginIsolated" expected property "crossOriginIsolated" missing
+PASS Window interface: attribute crossOriginIsolated
 PASS Window interface: operation btoa(DOMString)
 PASS Window interface: operation atob(DOMString)
 PASS Window interface: operation setTimeout(TimerHandler, optional long, any...)
@@ -4634,7 +4634,7 @@
 PASS Window interface: window must inherit property "onunload" with the proper type
 PASS Window interface: window must inherit property "origin" with the proper type
 PASS Window interface: window must inherit property "isSecureContext" with the proper type
-FAIL Window interface: window must inherit property "crossOriginIsolated" with the proper type assert_own_property: expected property "crossOriginIsolated" missing
+PASS Window interface: window must inherit property "crossOriginIsolated" with the proper type
 PASS Window interface: window must inherit property "btoa(DOMString)" with the proper type
 PASS Window interface: calling btoa(DOMString) on window with too few arguments must throw TypeError
 PASS Window interface: window must inherit property "atob(DOMString)" with the proper type

Will attempt to reproduce. 

May be related to https://bugs.webkit.org/show_bug.cgi?id=228198?

Comment 1 Radar WebKit Bug Importer 2021-08-03 13:22:09 PDT

<rdar://problem/81477261>

Comment 2 Eric Hutchison 2021-08-03 15:12:16 PDT

re-baseline committed at https://trac.webkit.org/changeset/280617/webkit

Comment 3 Alexey Proskuryakov 2021-08-06 10:50:59 PDT

Is this really done? A flaky failure cannot possibly be fixed by updating -expected.txt.

Comment 4 Eric Hutchison 2021-08-06 12:21:04 PDT

Upon review, failure is consistent. Issue not resolved by re-baseline.

Comment 5 Eric Hutchison 2021-08-06 12:59:40 PDT

Performed re-baseline process after updating with incorrect file. Will verify resolution before closing.