Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 9c753399ec16f9e4f071ed93d75f3c5bcd7d69b7
https://github.com/WebKit/WebKit/commit/9c753399ec16f9e4f071ed93d75f3c5bcd7d69b7
Author: Kiet Ho <[email protected]>
Date: 2026-05-25 (Mon, 25 May 2026)
Changed paths:
M LayoutTests/TestExpectations
M
LayoutTests/imported/w3c/web-platform-tests/intersection-observer/cross-origin-tall-iframe-rendering.sub.html
M
LayoutTests/imported/w3c/web-platform-tests/intersection-observer/cross-origin-tall-iframe.sub-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/intersection-observer/cross-origin-tall-iframe.sub.html
M
LayoutTests/imported/w3c/web-platform-tests/intersection-observer/resources/cross-origin-tall-subframe.sub.html
M LayoutTests/platform/glib/TestExpectations
M LayoutTests/platform/ios-site-isolation/TestExpectations
M LayoutTests/platform/mac-site-isolation/TestExpectations
Log Message:
-----------
[intersection-observer]
imported/w3c/web-platform-tests/intersection-observer/cross-origin-tall-iframe-{,rendering}.sub.html
are flaky
rdar://177595782
https://bugs.webkit.org/show_bug.cgi?id=315262
Reviewed by Simon Fraser.
These tests load 4 nested iframes but didn't wait for them to fully load before
testing:
1)
imported/w3c/web-platform-tests/intersection-observer/cross-origin-tall-iframe.sub.html:
It sends a message to the leaf iframe, then waits for a reply. If the message is
sent before the iframe is loaded, the message never gets delivered, and the test
keeps waiting until it times out.
2)
imported/w3c/web-platform-tests/intersection-observer/cross-origin-tall-iframe-rendering.sub.html
This reftest doesn't wait until all iframes are loaded before taking a
screenshot.
Fix this by making the leaf iframe emit a message to the top frame (the test
page)
when it's loaded, and making the tests wait for this message before doing
anything.
Additionally, install the message listener BEFORE setting the iframe src, to
ensure
the iframe doesn't finish loading before the listener is installed.
* LayoutTests/TestExpectations:
*
LayoutTests/imported/w3c/web-platform-tests/intersection-observer/cross-origin-tall-iframe-rendering.sub.html:
*
LayoutTests/imported/w3c/web-platform-tests/intersection-observer/cross-origin-tall-iframe.sub-expected.txt:
*
LayoutTests/imported/w3c/web-platform-tests/intersection-observer/cross-origin-tall-iframe.sub.html:
*
LayoutTests/imported/w3c/web-platform-tests/intersection-observer/resources/cross-origin-tall-subframe.sub.html:
* LayoutTests/platform/glib/TestExpectations:
* LayoutTests/platform/ios-site-isolation/TestExpectations:
* LayoutTests/platform/mac-site-isolation/TestExpectations:
* Mark
imported/w3c/web-platform-tests/intersection-observer/cross-origin-tall-iframe.sub.html
as failed in Site Isolation mode - Intersection Observer x Site Isolation
isn't working yet.
Canonical link: https://commits.webkit.org/313852@main
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