NGINX reverse proxy

Hi DF comunity!

We have successfully started the df-docker container and DreamFactory 2.5 works fine as a standalone container. Now we encounter unexpected behavior when we try to serve DreamFactory through our NGINX reverse proxy container.

When clicking a button, this line is added to the NGINX proxy log:
Apr 13 07:02:45 localhost docker[22495]: api.lts.no 192.168.1.105 - - [13/Apr/2017:07:02:45 +0000] "POST /api/v2/user/session HTTP/1.1" 403 374 "https://api.lts.no/dreamfactory/dist/index.html" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36"

When clicking a button, these lines are added to the Chromium log:
POST https://api.lts.no/api/v2/user/session 403 (Forbidden)
TypeError: Cannot read property 'message' of undefined

Published NGINX config file here:

Should we do something with the NGINX proxy config file?
Any other suggestions for what we could do to make this work?