text: Title: Docker security
  Body: Hi, i have deployed nginx-ui on Docker like documentation but i have a problem: if I try to access to nginx-ui through nginx proxy all is ok (basic auth ask me login) but if i go direct on port 8080 then i can access to nginx-ui bypassing nginx proxy.
  So, this is a summary:
  nginx.mysite.com -> asking login (OK!!!)
  mysite.com:8080 -> i can access to nginx-ui without login.
  
  Any helps?
  NGINX config
  ```json
  server { 
   listen 80;
   server_name nginx.mysite.com; 
   return 301 https://$host$request_uri; 
  } 
  server {
      listen 443 ssl; 
      server_name nginx.mysite.com; 
      ssl_certificate /etc/letsencrypt/live/mysite.com/fullchain.pem; 
      ssl_certificate_key /etc/letsencrypt/live/mysite.com/privkey.pem; 
      include /etc/letsencrypt/options-ssl-nginx.conf; 
      ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
  
      location / {
          proxy_pass http://127.0.0.1:8080/;
      }
  
      auth_basic "nginxui secured";
      auth_basic_user_file /etc/apache2/.htpasswd;
  }
  ```