title: touch events not firing in safari desktop
body: <p>I'm developing an app that would support touch events on desktop and mobile devices.
  when using something like (per <a href="https://developer.apple.com/library/safari/#documentation/appleapplications/reference/SafariWebContent/HandlingEvents/HandlingEvents.html" rel="nofollow">https://developer.apple.com/library/safari/#documentation/appleapplications/reference/SafariWebContent/HandlingEvents/HandlingEvents.html</a> )</p>
  
  <pre><code>element.addEventListener("touchstart", touchStart, false);
  element.addEventListener("touchmove", touchMove, false);
  element.addEventListener("touchend", touchEnd, false);
  element.addEventListener("touchcancel", touchCancel, false);
  </code></pre>
  
  <p>these only fire when testing on ipad and iphone, not on desktop. Since I'm developing on desktop, how could I make so these events are recognized?</p>