Nginx Config Generator

server {
    listen 80;
    listen [::]:80;
    server_name example.com;

    # force HTTPS
    if ($scheme = http) {
        return 301 https://$host$request_uri;
    }

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

    location / {
        try_files $uri $uri/ /index.html;
    }

    location ~* \.(js|css|png|jpg|jpeg|gif|svg|ico|woff2?)$ {
        expires 30d;
        add_header Cache-Control "public, immutable";
    }

    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_types text/plain text/css application/json application/javascript image/svg+xml;
}

Static mode adds SPA fallback, 30-day immutable asset caching and optional HTTPS/WWW rewrites; proxy mode sets the websocket + forwarding headers apps need. The redirect mode uses $request_uri so query strings survive.