HTTP integration is not set-up for reverse proxies?

Configuration
4

Thanks for the help (next time I will check more deeply the release notes !).

I am not very aware about network configuration but I suppose I have to configure something as:

http:
  - use_x_forwarded_for: true
  - trusted_proxies: <the IP of Nginx add-on>

How can I check the IP of Nginx ? Is the 172.30.33.3 from the warnings ?