a JSON parsing error is certainly unexpected. I wonder if you happen to be triggering some automatic Cloudflare WAF rule.
could you try uploading the same file from a computer? before uploading, please open your browser dev tools (F12) and visit the network tab. it should show some more details in there. especially the response tab should show an actual error message. in the headers tab, you could also share the value of the cf-ray
header with us and we can take a look at our logs. please be careful not to share everything you see in that network tab, as there are values visible there that allow taking over your lemmy account. specifically cookies and the jwt
value; in some cases also an authorization
header. cf-ray
is not sensitive, it’s just an identifier associated with the individual request.
feel free to pm me the cf-ray
value rather than posting it publicly.
thanks for the image. for some reason i can’t see the firewall event for your attempt, but when i tried to upload the image myself i found the event. it’s a rule related to a php file upload vulnerability in software we’re not even using, it’s disabled now.