nginx reverse proxy without ssl

domain.com

server {

   server_name <DOMAIN_NAME> www.<DOMAIN_NAME>;
   client_max_body_size 100M;
   autoindex off;

   location / {
        # reverse proxy for next server
        proxy_pass http://localhost:<PORT>;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;

        # we need to remove this 404 handling
        # because next's _next folder and own handling
        # try_files $uri $uri/ =404;
    }

}