title: Direct link (no redirect) to files in ActiveStorage
body: <p>Using <code>url_for()</code> on a file stored in active storage returns a url that leads to the application and then redirects to the actual location. Because of a <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=1346749" rel="noreferrer">bug in firefox</a> with CORS, the redirect breaks my application.</p>
  
  <p>Is there any way to get the direct link to the file with ActiveStorage?</p>