title: Rewrite for an empty query string
body: <p>I'm building in some caching to one of my sites, and I can't seem to find if there's a way to add a condition with mod_rewrite to apply only if the query string on a request is empty.</p>
  
  <p>For example, I'd love to know if I can have a request with no query string like </p>
  
  <pre><code>http://www.example.com/
  </code></pre>
  
  <p>load the page at </p>
  
  <pre><code>http://www.example.com/index.home.html
  </code></pre>
  
  <p>But any request with a query string, such as</p>
  
  <pre><code>http://www.example.com/?id=32
  </code></pre>
  
  <p>to load normally and not be affected by the rewrite.</p>
  
  <p>What am I missing?</p>