server {

       server_name sbd.example.org;

       root /var/www/sbd/html;

       index index.html index.htm;

       location / {
               try_files $uri $uri/ =404;
       }

       location ~ ^/[a-z].+$ {
          rewrite ^/(.*)$ /$1 break;
          proxy_pass  http://127.0.0.1:3000;
          proxy_set_header Host $host;
          proxy_set_header X-Real-IP $remote_addr;
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
          default_type  application/json;
          proxy_hide_header Content-Location;
          proxy_set_header  Connection "";
          proxy_http_version 1.1;
       }

}