Strip marker (UNIQ / QINU) issues (tracking)
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Authored By

	MarkAHershberger
	Dec 3 2010, 12:09 AM

Description

Replacing of this tracking task to a proper tag is under discussion at T127350: Convert T28213 Strip marker issues (tracking) to a "Strip-Marker" tag.

MediaWiki parser uses the strip markers (\127UNIQ--tagname-8 hex digits-QINU\127 strings) internally for certain operations while processing the input. They aren't supposed to appear in the output, but sometimes they do. Here the different issues of this kind are tracked.

UNIQ/QINU tends to be shown when there is either a broken or invalid template call on a page. It is sometimes also displayed if an extension tag has a bug in its PHP code where it processes some of the wikitext only partially.

Details

Reference: bz26213

Related Objects
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Status	Subtype	Assigned	Task
Open		None	T96152 Problems with Math in section titles
Open		None	T28213 Strip marker (UNIQ / QINU) issues (tracking)
Resolved		None	T16959 UNIQ... exposed to anonymous users when hook "InternalParseBeforeLinks" uses specific messages
Resolved		None	T16562 UNIQ key exposed when feeding strip markers into {{#tag:source
Open		None	T4700 Pre-save transform skips extensions using wikitext (gallery, references, footnotes, Cite, status indicators, pipe trick, subst, signatures)
Declined		mkroetzsch	T15474 using nowiki to disable markup in a string property garbles factbox and inline query
Invalid		None	T15620 #iferror should catch imagemap errors
Resolved		Reedy	T18129 Transcluded special pages expose strip markers when they output parsed messages
Resolved		None	T19329 Message handling in parser
Resolved		Reedy	T30532 wfMsgExt() and wfMsgWikiHtml() use $wgOut->parse()
Open		None	T24555 padleft: padright: and nowiki do not get on (guess same for all parser functions) UNIQ exposed
Resolved		None	T20295 Strip markers exposed in anchor links with ==[[Link\|<nowiki>text</nowiki>]]==
Resolved		tstarling	T23054 formatnum breaks strip markers and wikilinks
Open		None	T24880 Parser functions cannot control their output
Declined		None	T37291 DPL2 Displays UNIQ .. QINU when including a page using the Poem extension
Open		None	T37438 <ref> tag in templates causes UNIQ
Resolved		JeroenDeDauw	T32255 #ask result maps with template giving UNIQ/QINU tags
Open	BUG REPORT	None	T27417 ref inside Wikilinks leave UNIQ (when MediaWiki:Cite_reference_link is overridden)
Resolved		None	T27506 wfMsgWikiHtml() / wfMsgExt( 'parse' ) / wfMsgExt( 'parseinline' ) cannot be used inside tag hooks.
Open		None	T37825 fullurl arguments exposing nowiki stripmarkers
Resolved		None	T29467 preload can leave UNIQ
Resolved		None	T32738 Internal Error in StripState.php(37)
Resolved		None	T29623 UNIQ-nowiki-000 on preload pages since 1.17
Resolved		None	T31245 Babel: strange page title on preview or after saving (behaving as if it were a category)
Open		None	T38140 Parser::setFunctionTagHook() produces non-removed UNIQ markers when the tag is defined right after section start === ... === in page wikitext
Declined		None	T44637 Cite: StripState->addItem internal error thrown in some cases when using references and ? other extensions (SMW? Translate?)
Resolved		None	T46608 Exception "Invalid marker" on edit with unbalanced </translate> tag count
Declined		None	T40087 Poem extension exposes strip markers with long Chinese texts
Declined	PRODUCTION ERROR	None	T52606 Language::fetchLanguageNames should not call LanguageGetTranslatedLanguageNames for invalid language codes
Open		None	T51256 poem doesn't work nicely with SyntaxHighlight GeSHi
Declined		None	T62896 Error in SyntaxHighlight 1.0.8.11-wmf1: UNIQdbdb3ff6cb672d56-syntaxhighlight-00000001-QINU
Invalid		None	T52973 Preview gives fatal exception on Meta page with translate extension and a table
Resolved		Umherirrender	T58167 Transcluded Special:RecentChanges and Special:RecentChangesLinked can leave strip markers and overridden title
Resolved		None	T58226 MessageCache cloning of parser breaks stuff if it happens while in the process of parsing something
Resolved		Esanders	T58250 VisualEditor: Prevent application of link annotations to references
Open		None	T64996 <ref> in template parameter exposes UNIQ string on preview
Resolved		None	T56841 Error when transcluding RecentChangesLinked with no pages: "Given page title was invalid" and lots of UNIQ spew
Resolved		None	T53346 Transclusion of Special:MessageGroupStats shows UNIQ/QINU markers if no translations are available
Resolved		None	T65715 Using {{Special:RecentChanges/5}} when there are no recent changes results in UNIQ strings to be printed
Resolved		Bawolff	T67826 Recursive parser calls
Resolved		None	T73110 Exception from line 77 of /srv/mediawiki/php-master/includes/parser/StripState.php: Invalid marker
Resolved		None	T71348 <ref> <gallery> invalid </gallery></ref> creates MWException on Wikipedia but not on Wikibooks
Resolved		• demon	T78456 UNIQ Error from using {{#tag:}} with pipe in nowiki
Resolved		Amire80	T107303 ContentTranslation creates references that render themselves as UNIQ--nowiki-00000007-QINU
Declined		None	T121270 No form in MediaWiki 1.26
Declined		Cenarium	T127787 Strip markers in references data
Open		None	T128700 Strip marker exposed in {{DEFAULTSORT:}}
Invalid		None	T133477 Strip marker form inconsistency between PHP & Lua?
Duplicate		None	T140143 [Regression pre wmf.10] Math node is appearing as UNIQ marker in Read mode
Resolved		None	T138453 Many articles containing UNIQ--postMath-00000001-QINU
Resolved		None	T127738 [Regression pre-wmf.15] Math node is appearing as UNIQ marker in Read mode
Open		None	T20794 Strange urlencode error
Open		None	T136401 Exception "Invalid marker...Expansion depth limit exceeded" thrown when template expansion limit is exceeded inside a strip marker
Invalid		None	T168595 {{#invoke:mymodule\|showpage\|{{#tag:categorytree\|TestCategory\|hideroot="true"\|namespaces="-"}} }} results in strip markers being output
Resolved		• JMinor	T192927 Bad math-related display in iOS Wikipedia app
Invalid		None	T197510 Wikitech page is showing parser strip marker
Resolved		None	T209446 Transcluding Special:Contributions breaks <math> tag parsing
Open		None	T94344 Section anchor depends on the rendering mode
Resolved		Physikerwelt	T78046 Implement a single math rendering mode that works across all devices (MathML / SVG using mathoid)
Resolved		• mobrovac	T71702 Support PNG output for mathoid
Declined		Physikerwelt	T78056 Storing PNG images retrieved from mathoid
Declined		Physikerwelt	T100514 use binary data rather than text data for math_mathml, math_html and math_svg fields
Resolved		Physikerwelt	T74547 Minimize SVG output
Resolved		Physikerwelt	T34694 Use baseline shift when positioning inline math PNGs or SVGs
Invalid		Esanders	T53698 Parsoid: Output MathJax rendering for Math tags instead of images
Open		None	T54031 Allow extension options to be specified in API calls
Resolved		• mobrovac	T132096 Improve save / preview performance of MathML math rendering mode
Resolved		• mobrovac	T132536 Re-render Mathoid's PNGs stored in RESTBase
Resolved		Physikerwelt	T132607 Increase font size for MathML
Open		None	T242327 QINU appears instead of math in section names in search results
Open	BUG REPORT	None	T200704 TemplateStyles don't work when the template is inside a link
Resolved		• Pablo-WMDE	T218907 $UNIQ[hash]$ on Special:Undelete for items
Open		None	T218066 Cargo: Dynamic tables - \|order by= property ignored & UNIQ-QINU with \|details fields= property
Resolved	BUG REPORT	MGChecker	T221080 Attempting to substitute #var_final results in strip markers
Resolved	BUG REPORT	None	T236052 VoteNY - Math conflict
Resolved	BUG REPORT	None	T236629 Module error causes math tag to fail, displaying as strip marker
Resolved		None	T238271 Math/Chemical formula is not rendering on read mode for a specific page
Open		None	T267580 QINU issue occurs when Lua module modifies text that contains a Cite reference
Open		None	T283071 QINU error in output of TemplateStyles
Open		None	T288184 Labeled Section Transcluded section results in UNIQ strip marker error when passed to Cargo
Stalled	BUG REPORT	None	T295091 math markup in section heading
Duplicate		None	T24765 <math> in Headlines does not render correctly in TOC
Resolved	BUG REPORT	jhsoby	T324012 Strip marker message shown while creating new category page on Wikimedia Incubator
Duplicate	BUG REPORT	None	T328864 ToC shows strip marker for section title using <math>
Open		cscott	T383004 Parsoid read views: map with extension (cite, templatestyles) in caption results in raw UNIQ QINU marker
In Progress	BUG REPORT	MusikAnimal	T407101 CommunityRequests pages contain UNIQ markers when rendered with Parsoid
Open	BUG REPORT	None	T409616 {{#iferror:}} not working with {{#CommunityRequests:data}}
Resolved	Feature	MusikAnimal	T406537 Parser function to retrieve data for a focus area or wish
Duplicate	BUG REPORT	None	T411442 '"`UNIQ--maplink-00000002-QINU`"' on various English Wikivoyage dynamic maps due to parsoid change
Open	BUG REPORT	None	T416255 Math Symbols in TOC result in strip markers

Event Timeline

There are a very large number of changes, so older changes are hidden. Show Older Changes

Danny_B subscribed.Feb 7 2016, 9:22 PM

Qgil unsubscribed.Feb 11 2016, 12:26 PM

Aklapper mentioned this in T127350: Convert T28213 Strip marker issues (tracking) to a "Strip-Marker" tag.Feb 18 2016, 7:18 PM

Aklapper added a subtask: T127787: Strip markers in references data.Feb 23 2016, 10:51 AM

Aklapper added a subtask: T128700: Strip marker exposed in {{DEFAULTSORT:}}.Mar 3 2016, 9:19 AM

Danny_B added a subtask: T133477: Strip marker form inconsistency between PHP & Lua?.Apr 24 2016, 2:15 AM

Anomie closed subtask T133477: Strip marker form inconsistency between PHP & Lua? as Invalid.Apr 25 2016, 1:42 PM

Od1n reopened subtask T133477: Strip marker form inconsistency between PHP & Lua? as Open.May 8 2016, 4:04 PM

Anomie closed subtask T133477: Strip marker form inconsistency between PHP & Lua? as Invalid.May 9 2016, 3:22 PM

Danny_B added a subtask: T140143: [Regression pre wmf.10] Math node is appearing as UNIQ marker in Read mode.Jul 12 2016, 10:11 PM

• Phabricator_maintenance removed a parent task: T4007: [DO NOT USE] Tracking bug [superseded by #Tracking].Jul 28 2016, 2:33 AM

It would be good to update the ticket description a first aid guide for fighting those markers.

In T28213#2560664, @Physikerwelt wrote:

It would be good to update the ticket description a first aid guide for fighting those markers.

AFAICS, that's the purpose of the linked page: https://www.mediawiki.org/wiki/Strip_marker

MarkAHershberger unsubscribed.Aug 18 2016, 2:01 PM

Izno added a subtask: T138453: Many articles containing UNIQ--postMath-00000001-QINU.Aug 22 2016, 5:57 PM

Izno added a subtask: T127738: [Regression pre-wmf.15] Math node is appearing as UNIQ marker in Read mode.

Umherirrender added a subtask: T20794: Strange urlencode error.Sep 2 2016, 8:31 AM

Amire80 closed subtask T107303: ContentTranslation creates references that render themselves as UNIQ--nowiki-00000007-QINU as Resolved.Sep 26 2016, 5:24 AM

Aklapper added a subtask: T136401: Exception "Invalid marker...Expansion depth limit exceeded" thrown when template expansion limit is exceeded inside a strip marker.Oct 13 2016, 10:03 AM

Peachey88 unsubscribed.Oct 13 2016, 10:05 AM

Aklapper renamed this task from Strip marker issues (tracking) to Strip marker (UNIQ / QINU) issues (tracking).Dec 21 2016, 10:29 AM

Aklapper removed a subscriber: • wikibugs-l-list.

Per T127350

Krinkle closed subtask T78456: UNIQ Error from using {{#tag:}} with pipe in nowiki as Resolved.Apr 28 2017, 8:45 PM

Krinkle changed the status of subtask T16562: UNIQ key exposed when feeding strip markers into {{#tag:source from Duplicate to Resolved.Apr 28 2017, 9:05 PM

Anomie added a subtask: T168595: {{#invoke:mymodule|showpage|{{#tag:categorytree|TestCategory|hideroot="true"|namespaces="-"}} }} results in strip markers being output.Jun 22 2017, 1:20 PM

Anomie closed subtask T168595: {{#invoke:mymodule|showpage|{{#tag:categorytree|TestCategory|hideroot="true"|namespaces="-"}} }} results in strip markers being output as Invalid.Jun 22 2017, 1:32 PM

Aklapper added a subtask: T192927: Bad math-related display in iOS Wikipedia app.Apr 24 2018, 4:43 PM

Aklapper added a subtask: T197510: Wikitech page is showing parser strip marker.Jun 16 2018, 1:53 PM

Anomie closed subtask T197510: Wikitech page is showing parser strip marker as Invalid.Jun 16 2018, 6:15 PM

• Vvjjkkii reopened subtask T197510: Wikitech page is showing parser strip marker as Open.Jul 1 2018, 1:03 AM

CommunityTechBot closed subtask T197510: Wikitech page is showing parser strip marker as Invalid.Jul 2 2018, 4:51 AM

Krinkle closed subtask T52606: Language::fetchLanguageNames should not call LanguageGetTranslatedLanguageNames for invalid language codes as Declined.Sep 19 2018, 3:20 PM

Liuxinyu970226 moved this task from Transition suggested to Transition announced on the Tracking-Neverending board.Nov 6 2018, 12:53 PM

Liuxinyu970226 updated the task description. (Show Details)

AfroThundr3007730 added a subtask: T209446: Transcluding Special:Contributions breaks <math> tag parsing.Nov 14 2018, 1:30 AM

Physikerwelt added a subtask: T94344: Section anchor depends on the rendering mode.Dec 7 2018, 7:21 AM

Pppery added a subtask: T200704: TemplateStyles don't work when the template is inside a link.Dec 10 2018, 10:02 PM

Aklapper added a subtask: T218907: $UNIQ[hash]$ on Special:Undelete for items.Mar 22 2019, 12:02 PM

Aklapper added a subtask: T218066: Cargo: Dynamic tables - |order by= property ignored & UNIQ-QINU with |details fields= property.Mar 23 2019, 6:49 PM

Lucas_Werkmeister_WMDE closed subtask T218907: $UNIQ[hash]$ on Special:Undelete for items as Resolved.Mar 26 2019, 11:58 AM

Aklapper added a subtask: T221080: Attempting to substitute #var_final results in strip markers.Apr 16 2019, 1:24 PM

• JMinor closed subtask T192927: Bad math-related display in iOS Wikipedia app as Resolved.May 31 2019, 6:30 PM

putnik subscribed.Aug 21 2019, 10:23 PM

Izno added a subtask: T236052: VoteNY - Math conflict.Oct 21 2019, 1:00 PM

Aklapper added a subtask: T236629: Module error causes math tag to fail, displaying as strip marker.Oct 27 2019, 7:37 PM

Aklapper added a subtask: T238271: Math/Chemical formula is not rendering on read mode for a specific page.Nov 14 2019, 2:46 PM

DanielFriesen unsubscribed.Nov 14 2019, 5:16 PM

Jdlrobson closed subtask T127787: Strip markers in references data as Declined.Dec 17 2019, 6:42 PM

Aklapper added a subtask: T242327: QINU appears instead of math in section names in search results.Jan 9 2020, 10:43 AM

• CCicalese_WMF closed subtask T236629: Module error causes math tag to fail, displaying as strip marker as Resolved.Apr 28 2020, 8:48 PM

• CCicalese_WMF reopened subtask T236629: Module error causes math tag to fail, displaying as strip marker as Open.Apr 29 2020, 2:03 PM

Aklapper closed subtask T44637: Cite: StripState->addItem internal error thrown in some cases when using references and ? other extensions (SMW? Translate?) as Declined.May 19 2020, 3:49 PM

Aklapper updated the task description. (Show Details)Sep 6 2020, 6:25 AM

Nirmos updated the task description. (Show Details)Sep 6 2020, 9:04 AM

Huji added a subtask: T267580: QINU issue occurs when Lua module modifies text that contains a Cite reference.Nov 9 2020, 4:56 PM

Proposing to decline this task / close this task as invalid. Is someone really interested in following (not: finding, as that can be done via searching) all and any strip marker issues, or is this categorization for the sake of categorization (without someone doing that constant work)? If interested, then please elaborate.
If someone was interested, then this ticket should be convert into a project tag and people could subscribe to that project instead. See T127350.
See https://www.mediawiki.org/wiki/Phabricator/Help#.22Tracking.22_tasks

Second and last call to decline this task and close this task as invalid. If anyone cares, please speak up. Thanks.

Physikerwelt closed subtask T209446: Transcluding Special:Contributions breaks <math> tag parsing as Resolved.Jan 15 2021, 1:56 PM

I care, please don't close it. Tasks like this are helpful for de-duplicating bug reports with similar error messages, but potentially different causes.

@matmarex: Thanks. In that case, are you fine with T127350 ?

I guess I'd be "fine" with that, but it doesn't sound like much of an improvement. And I'm definitely against adding a workboard, those are the worst.

@matmarex: You are free to ignore workboards (we unfortunately cannot easily stop people from (over)categorizing stuff for unknown reasons).
I'd say it's an improvement to be able to follow projects, instead of (ab)using parent tasks for project tracking (due to Bugzilla's historical limitations).

matmarex closed subtask T238271: Math/Chemical formula is not rendering on read mode for a specific page as Resolved.Jan 22 2021, 7:06 PM

matmarex closed subtask T236629: Module error causes math tag to fail, displaying as strip marker as Resolved.Feb 24 2021, 2:17 PM

matmarex closed subtask T209446: Transcluding Special:Contributions breaks <math> tag parsing as Resolved.Feb 24 2021, 2:20 PM

matmarex closed subtask T127738: [Regression pre-wmf.15] Math node is appearing as UNIQ marker in Read mode as Resolved.Feb 24 2021, 2:42 PM

matmarex closed subtask T236052: VoteNY - Math conflict as Resolved.Feb 24 2021, 2:44 PM

matmarex closed subtask T138453: Many articles containing UNIQ--postMath-00000001-QINU as Resolved.Feb 24 2021, 3:20 PM

Huji added a subtask: T283071: QINU error in output of TemplateStyles.May 18 2021, 12:22 PM

Huji updated the task description. (Show Details)May 18 2021, 12:30 PM

Aklapper changed the status of subtask T121270: No form in MediaWiki 1.26 from Open to Stalled.Jun 17 2021, 2:41 PM

MJL added a subtask: T288184: Labeled Section Transcluded section results in UNIQ strip marker error when passed to Cargo.Aug 5 2021, 3:23 AM

Aklapper added a subtask: T295091: math markup in section heading.Nov 5 2021, 2:56 PM

Aklapper closed subtask T121270: No form in MediaWiki 1.26 as Declined.Nov 15 2021, 7:25 PM