Bug 265252

Summary:

Text in flex items not breaking under specific conditions

Product:

WebKit

Reporter:

Kevin Muncie <nivek2002>

Component:

Layout and Rendering

Assignee:

alan <zalan>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

ahmad.saleem792, bfulgham, changseok, esprehn+autocc, ews-watchlist, glenn, koivisto, kondapallykalyan, mmaxfield, nivek2002, pdr, sgill26, simon.fraser, webkit-bug-importer, zalan

Priority:

Keywords:

InRadar

Version:

Safari 17

Hardware:

Mac (Apple Silicon)

OS:

macOS 14

Attachments:

Description	Flags
Test HTML page showing bug and other permutation which do not exhibit bug	none
Screenshot showing issue across three browsers	none
Test reduction	none
Test reduction	none
[fast-cq]Patch	none

Kevin Muncie

Reported 2023-11-22 08:59:41 PST

Created attachment 468729 [details] Test HTML page showing bug and other permutation which do not exhibit bug This is a very peculiar bug that only seems to be happening in Safari. It was discovered when trying to render Cambodian text in a flex child, though the bug exists even when displaying Roman scripts. In a Flexbox child, with a text string containing no (U+0020) spaces, IF the text: - contains an inline-block element - has zero-width space (U+200B) characters between each word - all elements are wrapped in span elements A screenshot and example HTML document for testing is being attached.

Attachments
Test HTML page showing bug and other permutation which do not exhibit bug (5.71 KB, text/html) 2023-11-22 08:59 PST, Kevin Muncie	no flags	Details
Screenshot showing issue across three browsers (145.04 KB, image/png) 2023-11-22 09:00 PST, Kevin Muncie	no flags	Details
Test reduction (417 bytes, text/html) 2023-11-25 19:11 PST, alan	no flags	Details
Test reduction (301 bytes, text/html) 2023-11-25 19:19 PST, alan	no flags	Details
[fast-cq]Patch (5.69 KB, patch) 2023-11-25 20:48 PST, alan	no flags	Details Formatted Diff Diff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.

Kevin Muncie

Comment 1 2023-11-22 09:00:11 PST

Created attachment 468730 [details] Screenshot showing issue across three browsers

alan

Comment 2 2023-11-25 19:11:15 PST

Created attachment 468755 [details] Test reduction

Radar WebKit Bug Importer

Comment 3 2023-11-25 19:12:03 PST

<rdar://problem/118796634>

alan

Comment 4 2023-11-25 19:19:40 PST

Created attachment 468756 [details] Test reduction and now with no flex.

alan

Comment 5 2023-11-25 20:48:26 PST

Created attachment 468757 [details] [fast-cq]Patch

alan

Comment 6 2023-11-25 20:51:14 PST

Thank you for filing this issue! This is indeed a peculiar bug.

EWS

Comment 7 2023-11-26 09:42:58 PST

Committed 271122@main (073d84471418): <https://commits.webkit.org/271122@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 468757 [details].

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