Hmm, yeah, I agree wih Isarra. I find it a bit weird that they don't want to include avatar support for the Flow MediaWiki extension due to "to possible abuses (copyrighted images, offending images...)" when they have avatars for their other projects, such as Phabricator. It could be an optional thing which you could just enable or disable in the LocalSettings.php with a configuration parameter.

Oh sorry. I did not knew that. I'll try to make a contact on those other channels you suggested.

Oh I see. Thank you for your help.

Accidentally using a non-persistent cache? Could you explain this a little? I'm not sure how I did that, but so I can avoid it in the future.

Alright, so I tried to switch back to the 1.26 version of mediawiki(I made a backup folder before updating to 1.27, so I only had to rename that folder to html to switch back, and rename the 1.27 folder to something else.) and when I tried to login I got the following error:

Should I post my whole debug log or am I looking for a specific part?

Cool, thanks! I'll be back with the necessary logs.

If you have access to the server, capturing the 'session' and 'cookie' channels at debug log level during the two requests would likely be helpful.

My HTTP headers: https://phabricator.wikimedia.org/P3340