Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 4ab068e54b5cca59fd696c0b733b54af749ee9f3
https://github.com/WebKit/WebKit/commit/4ab068e54b5cca59fd696c0b733b54af749ee9f3
Author: Simon Fraser <[email protected]>
Date: 2026-06-15 (Mon, 15 Jun 2026)
Changed paths:
M
LayoutTests/imported/w3c/web-platform-tests/largest-contentful-paint/resources/largest-contentful-paint-helpers.js
Log Message:
-----------
REGRESSION(6/11/2026)?: [macOS iOS]
imported/w3c/web-platform-tests/largest-contentful-paint/image-TAO.sub.html is
a flaky text failure
https://bugs.webkit.org/show_bug.cgi?id=316939
rdar://179406190
Reviewed by Anne van Kesteren.
The test was failing with values like "expected a number greater than or equal
to 36.00000000000001 but got 36".
This happens because `performance.now()` is coarsened with a resolution of 1ms,
and `entry.renderTime` with 4ms.
Floating point rounding can cause the reduced-resolution "now" time to be
fractionally less than the renderTime.
Fix with an epsilon of 0.1ms.
*
LayoutTests/imported/w3c/web-platform-tests/largest-contentful-paint/resources/largest-contentful-paint-helpers.js:
(checkImage):
Canonical link: https://commits.webkit.org/315230@main
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