Vhost setup for Node app

node-nginx.conf

server { 
    listen 80;
    server_name example.com;
    location / { 
        proxy_pass http://localhost:1337;  # forward to node app
        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;
    } 
}