Current Nginx config

server {
  listen 4567;
  server_name _;
  location / {
    proxy_pass http://localhost:3000;
    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;
  }
}