server {
    server_name xy.com www.xy.com;

    # Set the "Access-Control-Allow-Origin" header to allow any origin
    add_header 'Access-Control-Allow-Origin' '*';

    # Allow the necessary HTTP methods and headers
    add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
    add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
    add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';

    # Additional CORS configurations if needed

    root /var/www/html;
    index index.html;

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

        proxy_pass http://127.0.0.1:3000;  # Forward requests to your Node.js application
        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;
    }

    location ~* \.mjs$ {
        add_header Content-Type application/javascript;
    }

    location ~* \.json$ {
        if ($request_method = 'OPTIONS') {
            add_header 'Access-Control-Allow-Origin' '*';
            add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
            add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
            add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
            add_header 'Access-Control-Max-Age' 1728000;
            add_header 'Content-Type' 'text/plain charset=UTF-8';
            add_header 'Content-Length' 0;
            return 204;
        }

        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
        add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
    }

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/xy.com-0001/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/xy.com-0001/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}

server {
    if ($host = www.xy.com) {
        return 301 https://$host$request_uri;
    }

    if ($host = xy.com) {
        return 301 https://$host$request_uri;
    }

    listen 80;
    server_name xy.com www.xy.com;
    return 404; # managed by Certbot


}