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Minerva views missing content styles on wmf.11 wikis that were briefly on wmf.12
Closed, ResolvedPublicBUG REPORT

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Jul 1 2021, 4:50 PM
Referenced Files
F34534685: Screenshot-2021-07-01-13:28:25.png
Jul 1 2021, 7:28 PM
F34534648: image.png
Jul 1 2021, 7:00 PM
F34534651: image.png
Jul 1 2021, 7:00 PM
F34534633: Screenshot_20210701-152433.jpg
Jul 1 2021, 6:37 PM
F34534546: Screenshot_20210701-134401.jpg
Jul 1 2021, 4:50 PM
F34534547: Screenshot_20210701-134010.jpg
Jul 1 2021, 4:50 PM


An error is occurring in the mobile version.

Screenshot_20210701-152433.jpg (960×540 px, 347 KB)

Screenshot_20210701-134010.jpg (960×540 px, 176 KB)

The error can be seen on Google Chrome (version 91.0.4472.134), Microsoft Edge (91.0.864.48) and also on Samsung Internet.

Event Timeline

Aklapper changed the task status from Open to Stalled.Jul 1 2021, 6:15 PM

Hi @Edu, thanks for taking the time to report this! Unfortunately this Wikimedia Phabricator task lacks some information.
If you have time and can still reproduce the situation: Please add a more complete description to this task. That should be

  • a clear and complete list of exact steps to reproduce the situation, step by step, so that nobody needs to guess or interpret how you performed each step,
  • what happens after performing these steps to reproduce,
  • what you expected to happen instead,
  • a full link to a web address where the issue can be seen,
  • the web browser(s) and web browser version(s) that you tested.

You can edit the task description by clicking Edit Task. Ideally, a good description should allow any other person to follow these steps (without having to interpret steps) and see the same results. Problems that others can reproduce can get fixed faster. Thanks again!

It looks like some of the styles are missing.

I tried to reproduce this on group1 wikis, and it happened on the main page of ca.wp too: (

image.png (2×3 px, 1 MB)

But a moment later I refreshed and the page looked fine. Seemingly this coincided with somebody making an edit to replace some of the featured content (or maybe cache expiring):

image.png (2×3 px, 2 MB)

I couldn't reproduce on any other pages since then.

@matmarex For me the error appears on the Catalan Wikisource:

I saw the error on a Wikinews page, but after updating it disappeared. And nobody edited the page🤷🏻‍♂️

RhinosF1 changed the task status from Stalled to Open.Jul 1 2021, 7:45 PM
RhinosF1 added a subscriber: RhinosF1.

Per on IRC, this only affected because of the train rolling back. It's just moved forward again so this shouldn't happen.

Krinkle claimed this task.
Krinkle added a subscriber: Krinkle.

Fixed by rolling forward again, which made both old and new CDN caches work correctly again.

Post mortem at T266361#7191087. Sorry about this!

Krinkle renamed this task from Mobile version error to Minerva views missing content styles on wmf.11 wikis that were briefly on wmf.12.Jul 1 2021, 7:46 PM