When I go to edit
https://en.m.wikipedia.org/wiki/User:Jdlrobson/vector.css
and click edit I get a response:
{"servedby":"mw1142","error":{"code":"rvnosuchsection","info":"There is no section 0 in r561422068"}}
Which causes an infinite length of ajax requests.
I thought this might be due to the '/' symbol but I seem to be able to edit mediawiki.org/wiki/MobileFrontend/Deployment
Version: unspecified
Severity: normal