Proxy Config with NGINX for Mattermost and Kanboard on one server (Broken API calls in Plugins?)

Troubleshooting
3

@denis.royer Make sure you have your Site URL configured to use the URL w/ the subdirectory, e.g. http://example.com/mattermost/. You might also need to change this:

location ~ /api/v[0-9]+/(users/)?websocket$

to this:

location ~ /mattermost/api/v[0-9]+/(users/)?websocket$