title: How To Open Zoomify tile source in OpenLayers
body: <p>I try to switch from zoomify viewer to OpenLayers.
  However, I did not manage to successfully load a zoomify image.</p>
  
  <p>Here is the URL:
  <a href="https://get.microvisioneer.com/scans/oltest2_stackoverflow.html" rel="nofollow noreferrer">https://get.microvisioneer.com/scans/oltest2_stackoverflow.html</a></p>
  
  <p>It loads one tile (7-57-24.jpg) from TileGroup18 successfully but nothing is displayed on the page.</p>
  
  <p>What am I doing wrong?</p>