Fix overflow:hidden/clip not clipping children over transparent borders#59266
Merged
chromium-wpt-export-bot merged 1 commit intomasterfrom Apr 16, 2026
Merged
Fix overflow:hidden/clip not clipping children over transparent borders#59266chromium-wpt-export-bot merged 1 commit intomasterfrom
chromium-wpt-export-bot merged 1 commit intomasterfrom
Conversation
The optimization did not account for this: it saw the child covering the full border box in layout and concluded the background was obscured, skipping the background paint entirely. This caused the transparent border area to show no background. Fixed: 502830847 Change-Id: Ifacdc78659a073ed8929d26314e22c61a8bf3122 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7764003 Reviewed-by: Morten Stenshorne <mstensho@chromium.org> Commit-Queue: Jason Leo <cgqaq@chromium.org> Cr-Commit-Position: refs/heads/main@{#1615869}
chromium-wpt-export-bot
force-pushed
the
chromium-export-cl-7764003
branch
from
4a5a4cc to
77875c5
Compare
wpt-pr-bot
approved these changes
Apr 16, 2026
Collaborator
wpt-pr-bot
left a comment
wpt-pr-bot
left a comment
There was a problem hiding this comment.
The review process for this patch is being conducted in the Chromium project.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
The optimization did not account for this: it saw the child covering the
full border box in layout and concluded the background was obscured,
skipping the background paint entirely. This caused the transparent
border area to show no background.
Fixed: 502830847
Change-Id: Ifacdc78659a073ed8929d26314e22c61a8bf3122
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7764003
Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Commit-Queue: Jason Leo <cgqaq@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1615869}