MediaViewer doesn't show line breaks as whitespace when using Parsoid
Closed, ResolvedPublicBUG REPORT
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Assigned To

Authored By

	Johannnes89
	May 12 2026, 8:04 PM

Project Tags

Referenced Files

	F81173101: Screenshot 2026-05-12 at 21.56.28.png
	May 12 2026, 8:04 PM

	F81173055: Screenshot 2026-05-12 at 21.56.39.png
	May 12 2026, 8:04 PM

Subscribers

Aklapper

doctaxon

Johannnes89

Description

Steps to replicate the issue:

Create a gallery which includes a line break

<gallery>
Example.jpg|Image<br />line break
</gallery>

Open the image in MediaViewer

What happens?:

No whitespace between "Image" and "line break" when using Parsoid: https://de.wikipedia.org/w/index.php?title=Benutzer:Johannnes89/Artikelentwurf&useparsoid=1#/media/Datei:Example.jpg

Screenshot 2026-05-12 at 21.56.39.png (1,610×1,046 px, 145 KB)

What should have happened instead?:

Show a whitespace between "Image" and "line break", just like in the legacy parser: https://de.wikipedia.org/w/index.php?title=Benutzer:Johannnes89/Artikelentwurf&useparsoid=0#/media/Datei:Example.jpg

Screenshot 2026-05-12 at 21.56.28.png (1,606×1,062 px, 146 KB)

Other information:

Reported in https://de.wikipedia.org/wiki/Wikipedia:Technik/Werkstatt#Fehler_in_Gallery_bei_Bildlegende_mit_manuellem_Umbruch

Details

Related Changes in Gerrit:

	Subject	Repo	Branch	Lines +/-
	Fix finding gallery captions	mediawiki/extensions/MultimediaViewer	master	+115 -46

Customize query in gerrit

Event Timeline

Johannnes89 created this task.May 12 2026, 8:04 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptMay 12 2026, 8:04 PM

doctaxon subscribed.May 13 2026, 6:51 AM

ABreault-WMF claimed this task.Wed, May 13, 7:04 PM

ABreault-WMF added a project: Content-Transform-Team (Work In Progress).

Change #1287008 had a related patch set uploaded (by Arlolra; author: Arlolra):

[mediawiki/extensions/MultimediaViewer@master] [WIP] Fix gallery caption

https://gerrit.wikimedia.org/r/1287008

gerritbot added a project: Patch-For-Review.Wed, May 13, 7:46 PM

ABreault-WMF moved this task from Backlog to Code Review on the Content-Transform-Team (Work In Progress) board.Wed, May 13, 10:20 PM

OSleger-WMF removed a project: Parsoid.Thu, May 14, 2:28 PM

Change #1287008 merged by jenkins-bot:

[mediawiki/extensions/MultimediaViewer@master] Fix finding gallery captions

https://gerrit.wikimedia.org/r/1287008

ReleaseTaggerBot added a project: MW-1.47-notes (1.47.0-wmf.3; 2026-05-19).Mon, May 18, 11:00 PM

Maintenance_bot removed a project: Patch-For-Review.Mon, May 18, 11:30 PM

ABreault-WMF moved this task from Code Review to To Deploy on the Content-Transform-Team (Work In Progress) board.Tue, May 19, 6:22 PM

Post-deploy these look the same now
https://de.wikipedia.org/w/index.php?title=Benutzer:Johannnes89/Artikelentwurf&useparsoid=0#/media/Datei:Example.jpg
https://de.wikipedia.org/w/index.php?title=Benutzer:Johannnes89/Artikelentwurf&useparsoid=1#/media/Datei:Example.jpg

MediaViewer doesn't show line breaks as whitespace when using ParsoidClosed, ResolvedPublicBUG REPORTActions

Description

Details

Event Timeline

MediaViewer doesn't show line breaks as whitespace when using Parsoid
Closed, ResolvedPublicBUG REPORT
Actions