http://localhost:3000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
    # Security headers
    add_header X-Frame-Options &quot;SAMEORIGIN&quot; always;
    add_header X-XSS-Protection &quot;1; mode=block&quot; always;
    add_header X-Content-Type-Options &quot;nosniff&quot; always;
    add_header Referrer-Policy &quot;no-referrer-when-downg