I don't see these failing requests in our access logs, which is odd.
Could you please capture details of the failures using your browser's developer tools? In Firefox, Tools -> Web Developer -> Network, then try to upload an attachment, then find the POST request to +addcomment. I'd like the request parameters (in the Params tab) and the request and response headers (in the Headers tab), but please omit the Cookie request header and the Set-Cookie response header.
The failure in Chromium suggests a local network problem to me ...
I don't see these failing requests in our access logs, which is odd.
Could you please capture details of the failures using your browser's developer tools? In Firefox, Tools -> Web Developer -> Network, then try to upload an attachment, then find the POST request to +addcomment. I'd like the request parameters (in the Params tab) and the request and response headers (in the Headers tab), but please omit the Cookie request header and the Set-Cookie response header.
The failure in Chromium suggests a local network problem to me ...