if someone else can reproduce this, might be UBN

@Novem_Linguae I missed this mention in the train blocker task before I rolled the train to group1.

Using the above repro instructions;

• Cannot reproduce on the beta cluster
• Cannot reproduce on mediawikiwiki

@Novem_Linguae could you try to reproduce this error on beta, and/or try reproducing it again?

FWIW, I think I noticed this on Monday, but I ignored it because I thought it was some thing on my end. Specifically, I did all these edits on idwiki on 17th and then came to mediawiki.org to do this edit, and if I remember correctly, the 1 notice from another wiki that showed on mw.org did not resolve for me then.

Unless my memory is off about the notice I clicked on Monday, I also suggest looking at patches from last train, just in case.

This has been around for quite a while, not a train blocker.

In T342282#9032417, @Tgr wrote:

This has been around for quite a while, not a train blocker.

Fantastic. Thank you.

T223413: Broken (empty) cross-wiki notification when using $wgLocalHTTPProxy (e.g. on Kubernetes)

Could be getting more frequent, so if more people report it that's ground for concern. But I've seen it happening years ago.

In T342282#9032417, @Tgr wrote:

This has been around for quite a while, not a train blocker.

Out of curiosity, is there another task for this then?

(And you can check the missing notifications by visiting the indicated wiki, so it's annoying but not crippling.)

Confirmed that I'm still getting it using the combination of enwiki and mediawikiwiki. Confirmed on two accounts.

Sorry for the train false alarm. Since it was happening on a group 0 wiki and I'd never had a problem before, I figured it might be related to the train.

Will close this as a duplicate.