title: Redirecting to permalink URL with credentials
body: <p>We have a special case, where we are uploading audio assets from our asset management system to Soundcloud. It works fine, but when redirecting the user I would like to do the authentication to a certain user on their behalf if they are not logged while doing the redirect. The workflow goes something like this:</p>
  
  <ol>
  <li>User chooses an audio asset in DAM</li>
  <li>User clicks the plugin that calls an API which handles the upload to Soundcloud</li>
  <li>We redirect the user to permalink_url from the response</li>
  </ol>
  
  <p>The problem is that we have two separate accounts. I would like to authenticate / login the user with certain credentials before the redirect. Is this doable?</p>