I am new to cloudflare tunnels and I am right now trying to reach my services at home from anywhere. An VPN is no option because my internet provider gives me a private IP adress.
I know how to set up an tunnel connection. An docker container running with Emby works fine and is with cloudflare tunnels reachable from the internet. (see image) 
But with the same settings and the Docker container File Browser (https://hub.docker.com/r/filebrowser/filebrowser) i get the error 502 bad gateway.
Does anybody knows how to fix the problem?
I already tried to use other services and the most services did work, but File Browser and Nextcloud wont.
Thanks for all help :)
