Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 811414ccc1d605644b63daf5a173ae1463a38f8e
https://github.com/WebKit/WebKit/commit/811414ccc1d605644b63daf5a173ae1463a38f8e
Author: Jessica Lee <[email protected]>
Date: 2026-08-13 (Thu, 13 Aug 2026)
Changed paths:
A
LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-iframe-element/cross-site/iframe-loading-lazy-nested-cross-site.sub-expected.txt
A
LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-iframe-element/cross-site/iframe-loading-lazy-nested-cross-site.sub.html
A
LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-iframe-element/cross-site/iframe-loading-lazy-siblings-cross-site.sub-expected.txt
A
LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-iframe-element/cross-site/iframe-loading-lazy-siblings-cross-site.sub.html
A
LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-iframe-element/cross-site/resources/iframe-loading-lazy-nested-subframe.sub.html
M LayoutTests/tests-options.json
M Source/WebCore/dom/Document.cpp
Log Message:
-----------
Add tests to check lazy-loading frames from multiple, distinct cross-site
sites
https://bugs.webkit.org/show_bug.cgi?id=321350
rdar://184384527
Reviewed by Sihui Liu and Kiet Ho.
Adding iframe-loading-lazy-siblings-cross-site and
iframe-loading-lazy-nested-cross-site which
check lazy-loading across 3 distinct sites.
Non-deterministic IPC timing sometimes caused the intersection to be computed
before layout, in which the
target becomes a zero-area rect that counts as intersecting and which results
in a deferred frame being
loaded eagerly. The fix is to copy the existing guard from
Document::updateIntersectionObservers() to
Document::updateRemoteIntersectionObservers().
Tests:
imported/w3c/web-platform-tests/html/semantics/embedded-content/the-iframe-element/cross-site/iframe-loading-lazy-nested-cross-site.sub.html
imported/w3c/web-platform-tests/html/semantics/embedded-content/the-iframe-element/cross-site/iframe-loading-lazy-siblings-cross-site.sub.html
*
LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-iframe-element/cross-site/iframe-loading-lazy-nested-cross-site.sub-expected.txt:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-iframe-element/cross-site/iframe-loading-lazy-nested-cross-site.sub.html:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-iframe-element/cross-site/iframe-loading-lazy-siblings-cross-site.sub-expected.txt:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-iframe-element/cross-site/iframe-loading-lazy-siblings-cross-site.sub.html:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-iframe-element/cross-site/resources/iframe-loading-lazy-nested-subframe.sub.html:
Added.
* LayoutTests/tests-options.json:
* Source/WebCore/dom/Document.cpp:
(WebCore::Document::updateRemoteIntersectionObservers):
Canonical link: https://commits.webkit.org/319139@main
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