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Maniphest T400005

Nothing is shown after visiting Special:Homepage by following links on mobile
Closed, ResolvedPublic2 Estimated Story PointsBUG REPORT
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Description

Steps to replicate the issue (include links if applicable):

  • Make sure JavaScript is working.
  • Try editing an article that should not have been suggested to you because it had already been edited before and click 'Back to all suggested edits' when an error message is inevitably shown.

OR:
Edit a page and click 'View all suggested edits' after the success message is shown.

What happens?:
A seemingly blank page is shown albeit there must be some HTML in there because the page title is displayed correctly.

What should have happened instead?:
The usual newcomer homepage should have loaded.

Other information (browser name/version, screenshots, etc.):
Browser: Chrome 138.0.7204.63 (mobile)

Notes

Details

Related Changes in Gerrit:
SubjectRepoBranchLines +/-
Fix blank page when navigating to Special:Homepage with overlay parametermediawiki/extensions/GrowthExperimentsmaster+2 -1
Customize query in gerrit

Related Objects

Event Timeline

Redmin created this task.Jul 20 2025, 6:59 PM
Restricted Application added a project: Growth-Team. · View Herald TranscriptJul 20 2025, 6:59 PM
Restricted Application added a subscriber: Aklapper. · View Herald Transcript
Redmin updated the task description. (Show Details)Jul 20 2025, 7:00 PM
Redmin renamed this task from Nothing is shown after visiting Special:Homepage by following links to Nothing is shown after visiting Special:Homepage by following links on mobile.Jul 21 2025, 4:04 AM
Redmin updated the task description. (Show Details)
Michael subscribed.Jul 21 2025, 12:48 PM
Etonkovidova moved this task from Inbox to Needs Discussion on the Growth-Team board.EditedJul 24 2025, 2:03 AM
Etonkovidova subscribed.

The issue is reproducible on testwiki wmf.11 - in a browser emulator (Chrome) and on a real device (iPhone); see the gif below:

blank_page_post_edit3.gif (690×366 px, 127 KB)

<a class="oo-ui-buttonElement-button" role="button" tabindex="0" href="/w/index.php?title=Special:Homepage&amp;source=postedit-panel&amp;overlay=1#/homepage/suggested-edits" rel="nofollow"><span class="oo-ui-iconElement-icon oo-ui-iconElement-noIcon"></span><span class="oo-ui-labelElement-label">View all suggested edits</span><span class="oo-ui-indicatorElement-indicator oo-ui-indicatorElement-noIndicator"></span></a>

Reloading the page redirects successfully to Special:Homepage

Michael added a comment.EditedJul 24 2025, 7:12 AM

Not yet sure what is going on.

That the page is white is due to this rule that is setting display: none; on the body:

.client-js body.mw-special-Homepage.growthexperiments-homepage-mobile-summary--opening-overlay {
  display: none;
}

The browser console has these four warnings:

mediawiki.jqueryMsg: growthexperiments-homepage-mentorship-optout-text: can't access property "mwJQueryMsgHasAlreadyBeenUsedAsAReplacement", replacements[index] is null mediawiki.jqueryMsg.js:164:11
mediawiki.jqueryMsg: growthexperiments-homepage-mentorship-about-subheader-mentor: can't access property "mwJQueryMsgHasAlreadyBeenUsedAsAReplacement", replacements[index] is null mediawiki.jqueryMsg.js:164:11
mediawiki.jqueryMsg: growthexperiments-homepage-mentorship-about-mentor-par1: can't access property "mwJQueryMsgHasAlreadyBeenUsedAsAReplacement", replacements[index] is null mediawiki.jqueryMsg.js:164:11
mediawiki.jqueryMsg: growthexperiments-homepage-mentorship-about-mentor-par2: can't access property "mwJQueryMsgHasAlreadyBeenUsedAsAReplacement", replacements[index] is null mediawiki.jqueryMsg.js:164:11
mediawiki.jqueryMsg: growthexperiments-homepage-mentorship-optout-text: can't access property "mwJQueryMsgHasAlreadyBeenUsedAsAReplacement", replacements[index] is null mediawiki.jqueryMsg.js:164:11

They might or might not be related.

The error can indeed be reliably reproduced with this link: https://en.wikipedia.beta.wmcloud.org/w/index.php?title=Special:Homepage&source=postedit-panel&overlay=1#/homepage/suggested-edits

Redmin added a comment.Jul 24 2025, 7:36 AM

So it was introduced for T297233 then, apparently to hide the homepage till the overlay loaded. The problem, of course, is that the latter does not happen any more.

KStoller-WMF moved this task from Needs Discussion to Up Next (estimated tasks) on the Growth-Team board.Jul 24 2025, 3:14 PM
KStoller-WMF triaged this task as High priority.Jul 29 2025, 2:23 PM
KStoller-WMF lowered the priority of this task from High to Medium.Aug 18 2025, 4:29 PM
KStoller-WMF moved this task from Up Next (estimated tasks) to Current Quarter Backlog on the Growth-Team board.Oct 20 2025, 3:21 PM
Michael added a project: Community Feedback (Growth).Nov 12 2025, 5:47 PM
Michael updated the task description. (Show Details)
KStoller-WMF moved this task from Current Quarter Backlog to Up Next (estimated tasks) on the Growth-Team board.Dec 2 2025, 4:20 PM
Cyndymediawiksim claimed this task.Dec 8 2025, 4:29 PM
gerritbot added a comment.Dec 9 2025, 2:11 PM

Change #1216798 had a related patch set uploaded (by Cyndywikime; author: Cyndywikime):

[mediawiki/extensions/GrowthExperiments@master] Fix blank page when navigating to Special:Homepage with overlay parameter

https://gerrit.wikimedia.org/r/1216798

gerritbot added a project: Patch-For-Review.Dec 9 2025, 2:11 PM
Cyndymediawiksim set the point value for this task to 2.Dec 9 2025, 3:43 PM
Cyndymediawiksim edited projects, added Growth-Team (FY2025-26 Q2 Sprint 5); removed Growth-Team.
Cyndymediawiksim moved this task from Incoming to Code Review on the Growth-Team (FY2025-26 Q2 Sprint 5) board.Dec 9 2025, 3:46 PM
gerritbot added a comment.Dec 12 2025, 12:15 PM

Change #1216798 merged by jenkins-bot:

[mediawiki/extensions/GrowthExperiments@master] Fix blank page when navigating to Special:Homepage with overlay parameter

https://gerrit.wikimedia.org/r/1216798

Maintenance_bot removed a project: Patch-For-Review.Dec 12 2025, 12:30 PM
ReleaseTaggerBot added a project: MW-1.46-notes (1.46.0-wmf.7; 2025-12-16).Dec 12 2025, 1:00 PM
Michael moved this task from Code Review to QA on the Growth-Team (FY2025-26 Q2 Sprint 5) board.Dec 16 2025, 5:37 PM
Etonkovidova closed this task as Resolved.Dec 16 2025, 8:54 PM

Checked both test case scenarios described in the task description - in both cases the SE page is displayed.

  • clicking on 'Back to all suggested edits' - works as expected
  • clicking on 'View all suggested edits' - works as expected
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