location {{ location_ws }} {
  proxy_set_header Host              $host;
  proxy_set_header X-Real-IP         $remote_addr;
  proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
  proxy_set_header X-Forwarded-Proto https;
  proxy_pass           http://127.0.0.1:{{ ws_port }};
  
  # Proxy buffering needs to be disabled for websockets. 
  proxy_buffering      off;
  proxy_http_version   1.1;
  proxy_set_header     Upgrade        $http_upgrade;
  proxy_set_header     Connection     $connection_upgrade;
  tcp_nodelay          on;
}