Options -Indexes

<IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteBase /

  # If the requested file or directory exists, serve it directly
  RewriteCond %{REQUEST_FILENAME} -f [OR]
  RewriteCond %{REQUEST_FILENAME} -d
  RewriteRule ^ - [L]

  # Otherwise, send everything to index.html (SPA fallback)
  RewriteRule ^ index.html [L]
</IfModule>

<IfModule mod_headers.c>
  <FilesMatch "\.(js|css|png|jpg|jpeg|gif|svg|webp|woff2?)$">
    Header set Cache-Control "public, max-age=604800, immutable"
  </FilesMatch>
</IfModule>

