problem with nginx proxy before docker container

Hello,

I have installed cachet via docker, everything works fine very good job ;-)

**BUT I have change the port section like this:**

```
ports:
- 8080:8000
```

**BUT if I create some nginx server on the docker host like this:**

```
upstream ssp {
server 127.0.0.1:8080;
}

location / {
proxy_pass http://ssp;
proxy_http_version 1.1;
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $http_connection;
proxy_set_header Origin http://$host;
proxy_set_header X-Forwarded-Ssl off;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Port 80;
}
```

My nginx server make HTTP to HTTPS redirect and make the SSL connection. Unfortunately cachet website look not so good the content could not be load correctly. Any idea what I can do now? Is cachet docker not ready for proxy?

Regards!