title: Android Volley - Some disc cached images dont get displayed?
body: <p>I've run into this weird error, where some images get cached as usual and some don't, any idea why?
  Both images do get displayed and memory cached just fine, but when offline some display error image.</p>
  
  <p>For example, this works fine:
  <a href="http://cs4381.vk.me/u73742951/a_58a41ac2.jpg" rel="nofollow noreferrer">http://cs4381.vk.me/u73742951/a_58a41ac2.jpg</a></p>
  
  <p>However, this does not: <a href="http://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Android_robot.svg/220px-Android_robot.svg.png" rel="nofollow noreferrer">http://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Android_robot.svg/220px-Android_robot.svg.png</a></p>
  
  <p>Both work fine displaying and memcaching but the second doesn't get displayed from disk cache, although I think I see it being saved, as app says it has 12kB cache in the system settings</p>
  
  <p><strong>Edit</strong></p>
  
  <p>I checked out a clean copy of Volley and it does the same thing. Its definatelly a bug... 
  From what Ive found out its that images do get cached, but <code>Bitmap cachedBitmap = mCache.getBitmap(cacheKey);</code> always returns null, so the cache says it doesnt have the bitmaps and then proceedes to download it again, and fail when offline, weird</p>