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Maniphest T41272

Bugs in "Live preview" feature (tracking)
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Description

Conversion of this tracking task to a project is discussing at T192074

This bug tracks all problems related to the "Live preview" feature that can be enabled in the preferences under "Editing".

RFC (later withdrawn): https://www.mediawiki.org/wiki/Requests_for_comment/Live_preview

URL: https://www.mediawiki.org/wiki/Manual:Live_preview

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StatusSubtypeAssignedTask
 ResolvedJdforrester-WMFT60082 TimedMediaHandler injects too many JavaScript configuration variables
 DeclinedNoneT98969 Video files do not play through the embedded player on EducationProgram and other fake pages
 ResolvedTheDJT51751 Ajax "This file already exists" doesn't load image related js (e.g. from TMH)
 InvalidNoneT41272 Bugs in "Live preview" feature (tracking)
 ResolvedNoneT10618 Live Preview doesn't reload Edit Summary preview; no way to use standard preview when Live Preview is enabled
 ResolvedNoneT27830 LivePreview makes page "jump"
 ResolvedTheDJT26134 LivePreview: styles added by extensions are missing
 ResolvedKrinkleT35399 LivePreview: Re-run wikipage content handlers (jquery.makeCollapsible, jquery.tablesorter, ..) after preview content is loaded
 ResolvedNoneT41273 "Show changes" should not be incorrectly displayed in the Live Preview state
 ResolvedNoneT53770 TemplateData styles are missing on live preview
 ResolvedNoneT43655 User script preview do not work if "tog-uselivepreview" is enabled
 ResolvedTheDJT55918 Collapsible lists on edit page footer no longer collapsible after live preview is used
 ResolvedKrinkleT53583 Add more mw.hook events for wikipage: diff, categories etc.
 Resolved• matmarexT45981 Live preview should be disabled if it can't preview the current content (user scripts specifically)
 ResolvedFomafixT61015 Show DISPLAYTITLE on livepreview
 ResolvedFomafixT56437 Table of contents interaction should be rebound on livepreview
 ResolvedLtrlgT53029 livePreview make 'Language settings' icon disappear
 ResolvedKrinkleT32713 Add mw.hook event for wikipage content ready
 ResolvedKrinkleT25580 Implement JavaScript mw.hooks framework
 ResolvedTheDJT55327 Live preview leaves min-height block when previewing changes
 ResolvedFomafixT62030 toc hide on live preview doesn't work anymore
 ResolvedFomafixT62036 LivePreview: Wrong skin when using useskin
 ResolvedTheDJT74675 Dynamically loading TimedMediaHandler for new content (preview)
 ResolvedTheDJT60085 TimedMediaHandler should not add start-up scripts
 ResolvedTheDJT75618 "Script error" is not clickable when using MediaWiki's live-preview feature.
 ResolvedFomafixT84836 LivePreview: Since 1.25wmf12 the preview of the summary does not get updated on "Show changes"
 ResolvedTheDJT84877 LivePreview: Since 1.25wmf12 in 'section=new' mode the section header is not shown
 DuplicateNoneT84883 Pressing "Show changes" doesn't show "Preview of edit summary"
 ResolvedTheDJT78709 New improved LivePreview incompatible with ProofreadPage's fancy forms for Index: namespace pages
 ResolvedFomafixT78838 LivePreview: no changes reflected on preview/diff when using CodeEditor
 ResolvedNoneT78834 LivePreview: duplicate 'templates used on this page' list
 DuplicateNoneT86697 Live preview does not update page status indicators
 ResolvedFomafixT87557 LivePreview does not show page status indicators
 ResolvedFomafixT103661 Reimplement Sanitizer::escapeId in JavaScript
 ResolvedFomafixT85784 LivePreview should not replace title message with displaytitle value in firstHeading
 ResolvedFomafixT85531 LivePreview: Preview of a redirect is not shown as a redirect
 ResolvedFomafixT88117 Update HTML title with displaytitle on live preview
 ResolvedFomafixT89941 LivePreview should not show edit section buttons
 ResolvedTheDJT90490 LivePreview should give feedback when failing
 ResolvedTheDJT90808 With MathJax and live preview enabled, math is displayed properly only the first time you click "preview" in a new article
 ResolvedTheDJT90851 LivePreview fires wikipage.content hook before attaching content, which breaks some scripts
 DuplicateNoneT91046 Parser profiling data should remain collapsible when using LivePreview
 ResolvedTheDJT91167 LivePreview does not show Preview header nor preview warning
 DeclinedKrinkleT95711 LivePreview: Page heading for "Creating" should support parser functions
 ResolvedTheDJT98656 "Use live preview" option does not show Graphs
 ResolvedTheDJT92944 Live preview should process JSConfigVars
 ResolvedAnomieT67015 API: Add jsconfigvars to action=parse
 ResolvedAnomieT76728 Clean up ApiResult and ApiFormatXml, create new formatversion
 ResolvedAnomieT85236 Better unit testing for ApiFormat*
 ResolvedEBernhardsonT90745 Flow ApiFlowModerateTopicTest::testModerateTopic() assumes ApiResult will pass through arbitrary objects
 ResolvedAnomieT98083 add checkbox to ApiSandbox to use formatversion=2
 ResolvedAnomieT98086 improve RELEASE-NOTES-1.25 for formatversion=2 change
 ResolvedNardogT102286 Live Preview does not show the "Templates used in this preview" when section-editing
 ResolvedBUG REPORTFomafixT105214 Preview shows wikitext instead of page title on test.wikipedia.org
 InvalidAklapperT123061 Live preview does not display map (from Mapframe template) on English wikivoyage
 ResolvedFomafixT149816 LivePreview substitutes $$ by $ in summary preview
 ResolvedJdforrester-WMFT171156 Live preview does not show the preview of the summary anymore
 ResolvedJdforrester-WMFT171176 Rename the "live preview" feature to reflect what it is (it's inline, not live)
 DuplicateNoneT176558 AJAX "Show changes" doesn't work when creating a page: "TypeError: response[0].query.pages[0].revisions is undefined"
 ResolvedDaimonaT109166 Live preview "Show changes" indicates no changes in on new pages
 ResolvedFuncT184466 Live preview doesn’t use new versions of templates embedded in themselves
 ResolvedFomafixT185683 Add uselang parameter to live preview diff requests
 ResolvedTheDJT190120 Parse warnings not visible with live preview
 DuplicateBUG REPORTNoneT260500 Live preview fails to prevent itself from executing when previewing a user CSS/JS more than once
 ResolvedNardogT186390 Javascript preview feature broken when live previews are enabled
 ResolvedBUG REPORTDaimonaT284625 Live preview should respect user's language variant setting
 ResolvedSamwilsonT117549 Do not generate warning on parameter `variant` for API requests
 ResolvederanrozT266738 Diff for Lua code module should always have LTR dir when using the inline preview tool
 ResolvedBUG REPORTDaimonaT292362 Signatures and substitutions remain unparsed in live diff
 ResolvedDaimonaT293022 LivePreview doesn't work with ProofreadPage pages
 ResolvedFomafixT293307 Header of diff in the editor missing when using live preview
 ResolvedBUG REPORTFomafixT293597 Live Preview: "Show changes" does not reset the diff area when there are no differences
 ResolvedBUG REPORTNardogT293892 Live preview fails when section=new&nosummary=1
 ResolvedFeatureAmmarpadT293930 Support live diff for creating a new section
 ResolvedBUG REPORTJdlrobsonT300814 Live preview doesn't work with Vector 2022 skin
 ResolvedSamwilsonT321032 When using preview, the edit link and protection status is lost in "Template used in this preview"
 ResolvedBUG REPORTTheresNoTimeT334518 Hidden Categories below the templates in edit isn't greyed out while loading
 ResolvedBUG REPORTAmmarpadT333808 Live preview incorrectly shows transclusions that are blue links in red
 ResolvedBUG REPORTSamwilsonT335624 Live preview can send hundreds of requests at once to get protection level messages
 DeclinedBUG REPORTNoneT325327 MediaWiki:Templatesusedpreview is not parsed in Realtime Preview
 ResolvedBUG REPORTSamwilsonT327354 Real-time preview (and live preview) don’t highlight redirects in italic
 ResolvedBUG REPORTNoneT315746 In edit preview, always sort the template list in alphabetical order
 ResolvedBUG REPORTNardogT277359 Lua logs not collapsible in live preview
 ResolvedBUG REPORTNardogT340900 Summary preview is missing when using live diff
 ResolvedBUG REPORTNardogT346524 Live diff doesn't show current content if the page was created after editing started
 ResolvedBUG REPORT• matmarexT347233 InputBox button not stylized in live preview
 ResolvedBUG REPORTNardogT347782 Live diff incorrectly shows blanking as "no difference"
 ResolvedBUG REPORTTheDJT353973 Kartographer preview context menu not working for live previews
 ResolvedBUG REPORTNardogT359285 Label for list of transclusions is not consistent between live and non-live preview

Event Timeline

There are a very large number of changes, so older changes are hidden. Show Older Changes
• matmarex removed a project: WikiEditor (2010).Jan 8 2018, 6:14 PM

WikiEditor's live preview was removed completely in rEWED77cea2697cc4: Drop the never-finished "Labs" publish and preview features.

Fomafix closed subtask T185683: Add uselang parameter to live preview diff requests as Resolved.Jan 25 2018, 8:07 PM
Aklapper added a subtask: T190120: Parse warnings not visible with live preview.Mar 20 2018, 8:53 AM
stjn subscribed.Apr 11 2018, 10:42 PM

Please consider remaking this into a project, the table with listed tasks is unreadable right now for me and I would guess many others on similar page widths (1366px).

image.png (584×972 px, 45 KB)

(there is no possibility to scroll and see the rest of the titles, they are showing up exactly like this, just with ellipses)

Aklapper added a comment.Apr 12 2018, 8:02 AM

@stjn: Feel free to request a project. Thanks!

stjn mentioned this in T192074: Create a new component project: MediaWiki-Live-preview and replace T41272.Apr 12 2018, 12:26 PM
Liuxinyu970226 updated the task description. (Show Details)Oct 8 2018, 6:24 AM
Liuxinyu970226 updated the task description. (Show Details)
Liuxinyu970226 moved this task from Tag to Transition announced on the Tracking-Neverending board.
MGChecker moved this task from Backlog to Live preview on the MediaWiki-Page-editing board.Nov 15 2018, 10:21 PM
ssastry changed the status of subtask T173792: ParserMigration extension is incompatible with LivePreview from Open to Stalled.Jan 25 2019, 6:44 PM
Aklapper added a subtask: T229615: Add support for live preview feature on multi-content revision edit.Aug 1 2019, 9:17 PM
Tacsipacsi mentioned this in T229615: Add support for live preview feature on multi-content revision edit.Aug 2 2019, 5:54 AM
Aklapper added subtasks: T260500: Live preview fails to prevent itself from executing when previewing a user CSS/JS more than once, T186390: Javascript preview feature broken when live previews are enabled.Sep 3 2020, 11:06 AM
• matmarex closed subtask T186390: Javascript preview feature broken when live previews are enabled as Resolved.Oct 5 2020, 8:03 PM
• matmarex closed subtask T102286: Live Preview does not show the "Templates used in this preview" when section-editing as Resolved.Oct 5 2020, 9:27 PM
• matmarex closed subtask T91167: LivePreview does not show Preview header nor preview warning as Resolved.Oct 15 2020, 3:43 PM
• matmarex closed subtask T190120: Parse warnings not visible with live preview as Resolved.
Aklapper changed the status of subtask T173792: ParserMigration extension is incompatible with LivePreview from Stalled to Open.Dec 13 2020, 5:13 PM
Nardog subscribed.Apr 2 2021, 10:52 AM
Diskdance added a subtask: T284625: Live preview should respect user's language variant setting.Jun 9 2021, 5:32 AM
Tacsipacsi mentioned this in T288907: Edit summary previews are no longer italic.Aug 15 2021, 12:59 PM
MusikAnimal mentioned this in T41666: Consider having both edit preview and diff on the same page w/experimental js preview.Sep 23 2021, 3:13 PM
MusikAnimal removed a subtask: T41666: Consider having both edit preview and diff on the same page w/experimental js preview.
Daimona closed subtask T105214: Preview shows wikitext instead of page title on test.wikipedia.org as Resolved.Sep 24 2021, 1:39 PM
Daimona closed subtask T145778: LivePreview "show changes" does not update or hide the category preview as Resolved.Sep 24 2021, 1:43 PM
Fomafix reopened subtask T145778: LivePreview "show changes" does not update or hide the category preview as Open.Sep 24 2021, 8:30 PM
Fomafix reopened subtask T105214: Preview shows wikitext instead of page title on test.wikipedia.org as Open.Sep 25 2021, 11:57 AM
MusikAnimal added a subtask: T266738: Diff for Lua code module should always have LTR dir when using the inline preview tool.Sep 27 2021, 2:56 PM
• matmarex closed subtask T266738: Diff for Lua code module should always have LTR dir when using the inline preview tool as Resolved.Oct 7 2021, 2:47 PM
Daimona added a subtask: T293022: LivePreview doesn't work with ProofreadPage pages.Oct 11 2021, 5:58 PM
Aklapper added a subtask: T293307: Header of diff in the editor missing when using live preview.Oct 14 2021, 5:36 AM
Nardog closed subtask T292362: Signatures and substitutions remain unparsed in live diff as Resolved.Oct 19 2021, 1:47 PM
Nardog closed subtask T109166: Live preview "Show changes" indicates no changes in on new pages as Resolved.
TheDJ removed a subtask: T136907: Live preview for "Preview page with this template".Oct 19 2021, 1:53 PM
MusikAnimal added a subtask: T293597: Live Preview: "Show changes" does not reset the diff area when there are no differences.Oct 19 2021, 2:49 PM
Daimona reopened subtask T109166: Live preview "Show changes" indicates no changes in on new pages as Open.Oct 19 2021, 10:10 PM
Daimona reopened subtask T292362: Signatures and substitutions remain unparsed in live diff as Open.
Nardog added a comment.Oct 20 2021, 12:56 PM
This comment was removed by Nardog.
• matmarex closed subtask T293307: Header of diff in the editor missing when using live preview as Resolved.Oct 20 2021, 4:58 PM
• matmarex closed subtask T293597: Live Preview: "Show changes" does not reset the diff area when there are no differences as Resolved.
• NRodriguez closed subtask T109166: Live preview "Show changes" indicates no changes in on new pages as Resolved.Oct 20 2021, 7:22 PM
• NRodriguez closed subtask T293022: LivePreview doesn't work with ProofreadPage pages as Resolved.Oct 20 2021, 7:44 PM
• matmarex closed subtask T293892: Live preview fails when section=new&nosummary=1 as Resolved.Oct 21 2021, 9:01 PM
• NRodriguez closed subtask T292362: Signatures and substitutions remain unparsed in live diff as Resolved.Oct 29 2021, 2:51 PM
• matmarex closed subtask T105214: Preview shows wikitext instead of page title on test.wikipedia.org as Resolved.Nov 2 2021, 10:31 PM
• Elitre unsubscribed.Nov 15 2021, 2:09 PM
Nardog removed a subtask: T297049: Live diff appears with big white space when run on top of a server-provided empty diff.Dec 4 2021, 4:35 PM
Nardog added a subtask: T297049: Live diff appears with big white space when run on top of a server-provided empty diff.
Fomafix closed subtask T284625: Live preview should respect user's language variant setting as Resolved.Dec 13 2021, 9:53 PM
Jdlrobson added a subtask: T300814: Live preview doesn't work with Vector 2022 skin.Feb 2 2022, 10:48 PM
cjming closed subtask T300814: Live preview doesn't work with Vector 2022 skin as Resolved.Feb 28 2022, 11:06 PM
Tacsipacsi added a subtask: T309451: Live preview shows incorrect proofread status and headers.May 29 2022, 6:09 AM
Tacsipacsi mentioned this in T309423: Page preview does not reflect published state.Jun 3 2022, 9:50 AM
Func closed subtask T184466: Live preview doesn’t use new versions of templates embedded in themselves as Resolved.Aug 29 2022, 4:47 AM
Shizhao added a subtask: T321032: When using preview, the edit link and protection status is lost in "Template used in this preview".Oct 18 2022, 7:19 AM
Raymond added a subtask: T325327: MediaWiki:Templatesusedpreview is not parsed in Realtime Preview.Dec 15 2022, 8:35 PM
• matmarex closed subtask T325327: MediaWiki:Templatesusedpreview is not parsed in Realtime Preview as Declined.Jan 17 2023, 4:52 PM
Tacsipacsi added a subtask: T327354: Real-time preview (and live preview) don’t highlight redirects in italic.Jan 18 2023, 10:52 PM
Tacsipacsi added a subtask: T315746: In edit preview, always sort the template list in alphabetical order.Jan 18 2023, 11:10 PM
• NRodriguez closed subtask T327354: Real-time preview (and live preview) don’t highlight redirects in italic as Resolved.Feb 22 2023, 8:38 PM
Nardog added a subtask: T277359: Lua logs not collapsible in live preview.Feb 26 2023, 6:31 AM
GMikesell-WMF closed subtask T321032: When using preview, the edit link and protection status is lost in "Template used in this preview" as Resolved.Apr 11 2023, 8:19 PM
Nardog added a subtask: T333808: Live preview incorrectly shows transclusions that are blue links in red.Apr 11 2023, 8:22 PM
• matmarex closed subtask T315746: In edit preview, always sort the template list in alphabetical order as Resolved.Apr 17 2023, 10:09 PM
• matmarex closed subtask T333808: Live preview incorrectly shows transclusions that are blue links in red as Resolved.
Ammarpad changed the status of subtask T293930: Support live diff for creating a new section from Open to In Progress.Apr 27 2023, 4:49 PM
Nardog added a subtask: T335624: Live preview can send hundreds of requests at once to get protection level messages.Apr 29 2023, 4:10 PM
TheresNoTime closed subtask T335624: Live preview can send hundreds of requests at once to get protection level messages as Resolved.May 23 2023, 1:14 PM
Tacsipacsi mentioned this in T317600: DiscussionTools triggers unparsed title on en.wikisource.May 24 2023, 8:24 PM
Od1n added a subtask: T340900: Summary preview is missing when using live diff.Jul 1 2023, 3:12 AM
• matmarex closed subtask T293930: Support live diff for creating a new section as Resolved.Jul 6 2023, 6:40 PM
• matmarex closed subtask T340900: Summary preview is missing when using live diff as Resolved.Jul 6 2023, 7:02 PM
Nardog added subtasks: T346524: Live diff doesn't show current content if the page was created after editing started, T347233: InputBox button not stylized in live preview, T347782: Live diff incorrectly shows blanking as "no difference".Oct 2 2023, 7:07 AM
• matmarex closed subtask T347233: InputBox button not stylized in live preview as Resolved.Oct 9 2023, 5:40 PM
Aklapper added a subtask: T353973: Kartographer preview context menu not working for live previews.Dec 23 2023, 2:56 PM
TheDJ closed subtask T353973: Kartographer preview context menu not working for live previews as Resolved.Jan 4 2024, 11:48 AM
MusikAnimal mentioned this in T354494: Can’t discard changes after showing changes.Feb 26 2024, 11:10 PM
Nardog added a subtask: T359285: Label for list of transclusions is not consistent between live and non-live preview.Mar 6 2024, 9:24 AM
Nardog closed subtask T359285: Label for list of transclusions is not consistent between live and non-live preview as Resolved.Mar 6 2024, 12:43 PM
Nardog added a subtask: T367657: Interlanguage links not available in live preview with Vector 2022.Jun 16 2024, 3:36 PM
Izno removed a subtask: T367657: Interlanguage links not available in live preview with Vector 2022.Aug 25 2024, 8:35 PM
Izno removed a subtask: T309451: Live preview shows incorrect proofread status and headers.
Izno removed a subtask: T297049: Live diff appears with big white space when run on top of a server-provided empty diff.
Izno removed a subtask: T41874: Live preview should not scroll (or there should be an option to disable the scrolling).
Izno removed a subtask: T71108: LivePreview doesn't allow interaction with page content outside of #wikiPreview (it is not passed to mw.hook).
Izno removed a subtask: T101809: live preview displays category page content below subcategories and files.
Izno removed a subtask: T113882: Live Preview adds an empty "in other languages" section in Vector.
Izno removed a subtask: T145778: LivePreview "show changes" does not update or hide the category preview.
Izno removed a subtask: T173792: ParserMigration extension is incompatible with LivePreview.
Izno removed a subtask: T229615: Add support for live preview feature on multi-content revision edit.
Izno closed this task as Invalid.Aug 25 2024, 8:38 PM
Izno subscribed.

Closing per T192074: Create a new component project: MediaWiki-Live-preview and replace T41272 (without prejudice to further work there to spin live preview out from a column to some sort of project).

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