Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: e64e28917cb47d06b9f3b0ba24989805bd4ee1ad
https://github.com/WebKit/WebKit/commit/e64e28917cb47d06b9f3b0ba24989805bd4ee1ad
Author: Zak Ridouh <[email protected]>
Date: 2026-10-08 (Thu, 08 Oct 2026)
Changed paths:
A
LayoutTests/http/tests/site-isolation/monochrome-media-feature-in-cross-origin-iframe-expected.txt
A
LayoutTests/http/tests/site-isolation/monochrome-media-feature-in-cross-origin-iframe.html
A
LayoutTests/http/tests/site-isolation/resources/monochrome-media-feature-iframe.html
M Source/WebCore/css/query/MediaQueryFeatures.cpp
Log Message:
-----------
[Site Isolation] The monochrome media feature always evaluates to 0 in
cross-site iframes
<https://bugs.webkit.org/show_bug.cgi?id=326018>
<rdar://problem/188957484>
Reviewed by Tim Nguyen.
The monochrome media feature read the screen through localMainFrame(), which is
null in a cross-site iframe's process, so it
always evaluated to 0 there. Use the main frame's view, local or remote, like
the color and dynamic-range features do.
Test:
http/tests/site-isolation/monochrome-media-feature-in-cross-origin-iframe.html
*
LayoutTests/http/tests/site-isolation/monochrome-media-feature-in-cross-origin-iframe-expected.txt:
Added.
*
LayoutTests/http/tests/site-isolation/monochrome-media-feature-in-cross-origin-iframe.html:
Added.
*
LayoutTests/http/tests/site-isolation/resources/monochrome-media-feature-iframe.html:
Added.
* Source/WebCore/css/query/MediaQueryFeatures.cpp:
(WebCore::MQ::Features::monochromeFeatureSchema):
Canonical link: https://commits.webkit.org/323146@main
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