title: How can I force Rails 3.2 to reload mounted rack app per request in development mode?
body: <p>How can I force Rails 3.2 to reload mounted rack app per request in development mode?</p>
  
  <p>I have mounted <a href="https://github.com/intridea/grape" rel="nofollow">grape</a> app this way  </p>
  
  <pre><code> mount API2, :at =&gt; "/api2"
  </code></pre>
  
  <p>However rails doesn't reflect changes in app without web server restart.</p>