title: How can I access track/album art from local music from the Spotify API?
body: <p>I am in the process of building an app using the Spotify API as a learning project for myself. 
  The purpose of the app is to provide a web based remote control for Spotify so I can control a running instance of Spotify on my desktop using a phone or tablet. The Spotify app talks to my Python web server using websockets so I've gotten the core remote control functionality working fine, but I am running into a separate issue.</p>
  
  <p>In the Spotify app, when it encounters a <strong>local file</strong> (player.track.local = true), <strong>player.track.image returns an empty string</strong>. When playing a Spotify hosted track, player.track.image always returns a URI in the form of "spotify:image:...". I know that the Spotify Desktop app can see the album art because it displays in the player on the bottom left. I just can't access it for use in my app.</p>
  
  <p><strong>Is there any way to retrieve this art</strong> (or failing that a path to the local file so I can go get it myself from the Python server?) Thanks.</p>
  
  <p>-Jeremy</p>