gistfile1.txt

    location / {
      proxy_set_header  X-Real-IP  $remote_addr;
      proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_redirect off;
      proxy_max_temp_file_size 0;
      if (-f $request_filename/index.html) {
        rewrite (.*) $1/index.html break;
      }

      if (-f $request_filename.html) {
        rewrite (.*) $1.html break;
      }

      if (!-f $request_filename) {
        proxy_pass http://127.0.0.1:4485;
        break;
      }