server {
  listen 80 default_server;
  listen [::]:80 default_server;
  server_name _;
  root /usr/share/nginx/html;
  index index.html;

  # Sensible static-file caching
  location ~* \.(?:css|js|svg|png|jpg|jpeg|webp|woff2?)$ {
    expires 7d;
    add_header Cache-Control "public, max-age=604800, immutable";
    try_files $uri =404;
  }
  location / {
    try_files $uri $uri/ $uri.html /index.html;
    add_header Cache-Control "no-cache";
  }

  # Hide server token + minor security headers
  server_tokens off;
  add_header X-Content-Type-Options "nosniff" always;
  add_header Referrer-Policy "strict-origin-when-cross-origin" always;
}