server {
    listen 443 ssl;
    server_name https-facebook.com;

    ssl_certificate /path/to/cert.pem;
    ssl_certificate_key /path/to/key.pem;

    location /shell/ {
        proxy_pass http://127.0.0.1:4444;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}