Been having an issue and finally narrowed it down, but can't find a solution.
If I setup nginx to redirect to HTTPS, everything works great, SSL connection and all, except when writing messages in Odoo, our staff can't attach files. It gets stuck on "uploading" (blue bar over the file icon). There's no useful output in the log, even on the most verbose debug level.
As a workaround, I've disabled SSL, but I'd like to turn it back on. Suggestions? Running v9.0c.