Nginx reverse proxy to ESPurna

gistfile1.txt

#Note: my ESPurna device is located at 10.0.1.33

        location /rf/ws {
                proxy_pass http://10.0.1.33/ws;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_redirect off;
        }

        location /rf/ {
              # header pass through configuration
              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 $scheme;
                      # actual proxying configuration
              proxy_pass             http://10.0.1.33/;
              proxy_redirect          default;
                proxy_read_timeout  36000s;
         }