Bug 301263

Summary: text-box-trim + underline (a, u, ins, abbr) spacing issue.
Product: WebKit Reporter: Nilesh Prajapati <nileshprajapati>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: bfulgham, fantasai.bugs, simon.fraser, vitor.roriz, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: Safari 26   
Hardware: Mac (Intel)   
OS: macOS 26   
URL: https://codepen.io/nileshprajapati/pen/JoGNEgz
See Also: https://bugs.webkit.org/show_bug.cgi?id=301794
Attachments:
Description Flags
Test reduction none

Nilesh Prajapati
Reported 2025-10-22 02:07:57 PDT
Hi Webkit, I’ve come across an issue with inline elements (a, u, ins, and abbr) that contain an underline. When `text-box-trim` is applied, the spacing between the text and the underline has additional spacing. I have included a Codepen demo of the issue, see below: https://codepen.io/nileshprajapati/pen/JoGNEgz In comparison, Chrome behaves as expected, but within Safari, this displays inconsistent additional spacing between the text and the text-decoration underline. Note: I have tested both with and without text-underline-offset in the demo above. Thanks, Nilesh
Attachments
Test reduction (165 bytes, text/html)
2025-10-30 13:07 PDT, alan 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2025-10-29 02:08:12 PDT
<rdar://problem/163629558>
alan
Comment 2 2025-10-30 13:07:51 PDT
Created attachment 477238 [details] Test reduction
alan
Comment 3 2025-10-30 13:08:41 PDT
Nilesh, thank you for filing this bug report. I am able to reproduce this issue on trunk.
alan
Comment 4 2025-10-30 16:28:21 PDT
Apparently I "accidentally" fixed it today with 302345@main. It was supposed to be a cleanup type of change but now I have a test case. Thank you!
alan
Comment 5 2025-10-30 16:28:40 PDT
*** This bug has been marked as a duplicate of bug 301672 ***
Nilesh Prajapati
Comment 6 2025-10-30 16:35:28 PDT
👍🏾
alan
Comment 7 2025-10-31 19:14:08 PDT
some more fixes in bug 301794.
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