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Maniphest T234299

Links like "[[:/y/]]" and "[[/y̫/]]" displayed incorrectly in preview
Open, MediumPublicBUG REPORT
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Assigned To
ABreault-WMF
Authored By
ToBeFree
Oct 1 2019, 4:26 AM
Project Tags
Referenced Files
F30517084: actual-result.png
Oct 1 2019, 4:33 AM
F30517087: preview-correct.png
Oct 1 2019, 4:33 AM
F30517089: preview-incorrect.png
Oct 1 2019, 4:33 AM
F30517081: source.png
Oct 1 2019, 4:33 AM
F30517048: actual-result.png
Oct 1 2019, 4:26 AM
F30517047: preview-incorrect.png
Oct 1 2019, 4:26 AM
F30517046: preview-correct.png
Oct 1 2019, 4:26 AM
F30517049: source.png
Oct 1 2019, 4:26 AM
Subscribers
Aklapper
• matmarex
Ostrzyciel
ToBeFree

Description

https://en.wikipedia.org/w/index.php?title=User:ToBeFree/sandbox&oldid=968133171

Source code:

source.png (191×186 px, 4 KB)

Actual output:

actual-result.png (244×28 px, 1 KB)

Correct preview in the normal source editor:

preview-correct.png (243×29 px, 1 KB)

Incorrect preview in VisualEdit's new source editor:

preview-incorrect.png (221×34 px, 1 KB)

Details

Related Changes in Gerrit:
SubjectAuthorRepoBranchLines +/-
Bump wikimedia/parsoid to 0.24.0-a17Arlolramediawiki/vendorwmf/1.47.0-wmf.13+332 -153
Bump wikimedia/parsoid to 0.24.0-a17Subramanya Sastrymediawiki/vendormaster+332 -153
Colon-escaped child link doesn't drop trailing slashArlolramediawiki/services/parsoidmaster+22 -3
Customize query in gerrit

Related Objects

Event Timeline

ToBeFree created this task.Oct 1 2019, 4:26 AM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptOct 1 2019, 4:26 AM
ToBeFree updated the task description. (Show Details)Oct 1 2019, 4:27 AM
ToBeFree renamed this task from Links like "[[:/y/]]" displayed incorrectly in preview to Links like "[[:/y/]]" and "[[/y̫/]]" displayed incorrectly in preview.Oct 1 2019, 4:33 AM
ToBeFree updated the task description. (Show Details)
ToBeFree updated the task description. (Show Details)
• matmarex subscribed.Oct 1 2019, 10:52 PM

Parsoid HTML has the same issue: https://en.wikipedia.org/api/rest_v1/page/html/User%3AToBeFree%2Fsandbox/918972167

So the specific examples that are parsed wrong are these two:

[[:/y̫/]]
[[/y̫/]]
• matmarex edited projects, added: Parsoid; removed: VisualEditor.Oct 1 2019, 10:55 PM

I had already reported the first failing case in T221028: Parsoid incorrectly parses links to pages starting with a slash '/' in namespaces that can have subpages a few weeks ago, but the second one is new.

LGoto moved this task from Needs Triage to Backlog on the Parsoid board.Feb 15 2020, 12:05 AM
LGoto moved this task from Backlog to Bugs & Crashers on the Parsoid board.Feb 21 2020, 5:30 PM
LGoto triaged this task as Medium priority.May 1 2020, 4:26 PM
ToBeFree updated the task description. (Show Details)Jul 17 2020, 12:46 PM
Ostrzyciel mentioned this in T221028: Parsoid incorrectly parses links to pages starting with a slash '/' in namespaces that can have subpages.Nov 5 2020, 4:23 PM
Ostrzyciel subscribed.
gerritbot added a comment.Jul 20 2026, 9:37 PM

Change #1312595 had a related patch set uploaded (by Arlolra; author: Arlolra):

[mediawiki/services/parsoid@master] Colon-escaped child link doesn't drop trailing slash

https://gerrit.wikimedia.org/r/1312595

gerritbot added a project: Patch-For-Review.Jul 20 2026, 9:37 PM
gerritbot added a comment.Jul 21 2026, 11:11 AM

Change #1312595 merged by jenkins-bot:

[mediawiki/services/parsoid@master] Colon-escaped child link doesn't drop trailing slash

https://gerrit.wikimedia.org/r/1312595

Maintenance_bot removed a project: Patch-For-Review.Jul 21 2026, 11:31 AM
ABreault-WMF claimed this task.Jul 21 2026, 3:56 PM
ABreault-WMF added a project: Content-Platform-Team (Work In Progress).
ABreault-WMF moved this task from Backlog to To Deploy on the Content-Platform-Team (Work In Progress) board.
gerritbot added a comment.Jul 27 2026, 9:56 PM

Change #1318304 had a related patch set uploaded (by Subramanya Sastry; author: Subramanya Sastry):

[mediawiki/vendor@master] Bump wikimedia/parsoid to 0.24.0-a17

https://gerrit.wikimedia.org/r/1318304

gerritbot added a project: Patch-For-Review.Jul 27 2026, 9:56 PM
gerritbot added a comment.Jul 28 2026, 9:17 AM

Change #1318304 merged by jenkins-bot:

[mediawiki/vendor@master] Bump wikimedia/parsoid to 0.24.0-a17

https://gerrit.wikimedia.org/r/1318304

Maintenance_bot removed a project: Patch-For-Review.Jul 28 2026, 9:31 AM
gerritbot added a comment.Jul 28 2026, 5:29 PM

Change #1318746 had a related patch set uploaded (by Arlolra; author: Subramanya Sastry):

[mediawiki/vendor@wmf/1.47.0-wmf.13] Bump wikimedia/parsoid to 0.24.0-a17

https://gerrit.wikimedia.org/r/1318746

gerritbot added a project: Patch-For-Review.Jul 28 2026, 5:29 PM
gerritbot added a comment.Jul 28 2026, 8:49 PM

Change #1318746 merged by jenkins-bot:

[mediawiki/vendor@wmf/1.47.0-wmf.13] Bump wikimedia/parsoid to 0.24.0-a17

https://gerrit.wikimedia.org/r/1318746

Stashbot mentioned this in T432477: Template content encapsulation is incorrect for a large template.Jul 28 2026, 8:50 PM
Stashbot mentioned this in T360814: VisualEditor generate wrong label for specific it.wiki template.

Mentioned in SAL (#wikimedia-operations) [2026-07-28T20:50:11Z] <arlolra@deploy1003> Started scap sync-world: Backport for [[gerrit:1318746|Bump wikimedia/parsoid to 0.24.0-a17 (T19006 T234299 T360814 T385317 T432477 T433018)]], [[gerrit:1318747|Bump wikimedia/parsoid to 0.24.0-a17 (T433018)]]

Stashbot mentioned this in T385317: Section wrapping can break encapsulation continuity so that subsequent passes are confused.Jul 28 2026, 8:50 PM
Stashbot mentioned this in T19006: Blank anchor [[#|anchor link]] should not link to the Main Page.
Stashbot mentioned this in T433018: CTT tasks week of 2026-07-24.

Mentioned in SAL (#wikimedia-operations) [2026-07-28T20:52:10Z] <arlolra@deploy1003> arlolra: Backport for [[gerrit:1318746|Bump wikimedia/parsoid to 0.24.0-a17 (T19006 T234299 T360814 T385317 T432477 T433018)]], [[gerrit:1318747|Bump wikimedia/parsoid to 0.24.0-a17 (T433018)]] synced to the testservers (see https://wikitech.wikimedia.org/wiki/Mwdebug). Changes can now be verified there.

Stashbot added a comment.Jul 28 2026, 8:58 PM

Mentioned in SAL (#wikimedia-operations) [2026-07-28T20:58:30Z] <arlolra@deploy1003> Finished scap sync-world: Backport for [[gerrit:1318746|Bump wikimedia/parsoid to 0.24.0-a17 (T19006 T234299 T360814 T385317 T432477 T433018)]], [[gerrit:1318747|Bump wikimedia/parsoid to 0.24.0-a17 (T433018)]] (duration: 08m 19s)

Maintenance_bot removed a project: Patch-For-Review.Jul 28 2026, 9:31 PM
ABreault-WMF moved this task from To Deploy to To Verify on the Content-Platform-Team (Work In Progress) board.Jul 30 2026, 11:41 PM
ABreault-WMF added a comment.Aug 5 2026, 6:28 PM
In T234299#5539759, @matmarex wrote:

Parsoid HTML has the same issue: https://en.wikipedia.org/api/rest_v1/page/html/User%3AToBeFree%2Fsandbox/918972167

So the specific examples that are parsed wrong are these two:

[[:/y̫/]]

This one is now fixed,
https://en.wikipedia.org/w/index.php?title=User:ToBeFree/sandbox&oldid=968133171&useparsoid=0
https://en.wikipedia.org/w/index.php?title=User:ToBeFree/sandbox&oldid=968133171&useparsoid=1

[[&#x2f;y̫&#x2f;]]

It's unclear to me why that one should parse as if it was colon escaped. I'm tempted to leave it as a known difference but maybe others know better

SLopes-WMF moved this task from To Verify to In Progress on the Content-Platform-Team (Work In Progress) board.Mon, Aug 17, 3:11 PM
OSleger-WMF added a project: Essential-Work.Thu, Aug 27, 2:23 PM
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