title: Windows 8.1 IE11(Edge) Google map JavaScript API v3 Pinch zoom in/out Issue
body: <p>Google map javascript v3 pinching zoom in and out is not working on IE11(Edge) win8.1 preview OS after updating my OS from windows 8 to windows 8.1 preview. Please see my screenshot here: </p>
  
  <p><img src="https://i.stack.imgur.com/aYXRF.png" alt="enter image description here"></p>
  
  <p>This is all working fine with my previews windows 8 and IE10. What do you think?</p>