title: Repaint bug with background-attachment fixed and background-size cover in Chrome
body: <p>I have element with:</p>
  
  <pre><code>background-image url('../images/belly.png')
  background-position  50% 50%
  background-repeat no-repeat
  background-attachment fixed
  background-size cover
  </code></pre>
  
  <p>And underlying element with <code>position: fixed;</code></p>
  
  <p>And if I scroll page background is not redrawing. Problem appear in Chrome. Any solution?</p>
  
  <p>demo: <a href="http://silentimp.github.io/90daysofbelly/" rel="nofollow">http://silentimp.github.io/90daysofbelly/</a></p>
  
  <p>video: <a href="https://www.youtube.com/watch?v=av6jZciNszo&amp;feature=youtu.be" rel="nofollow">https://www.youtube.com/watch?v=av6jZciNszo&amp;feature=youtu.be</a></p>