Work around Safari touch-listener bug

Related to #33

src/platform-events.js

@@ -14,15 +14,26 @@
  */
 (function(scope) {
   var dispatcher = scope.dispatcher;
+  var nav = window.navigator;
 
   if (window.PointerEvent) {
     dispatcher.registerSource('pointer', scope.pointerEvents);
-  } else if (window.navigator.msPointerEnabled) {
+  } else if (nav.msPointerEnabled) {
     dispatcher.registerSource('ms', scope.msEvents);
   } else {
     dispatcher.registerSource('mouse', scope.mouseEvents);
     if (window.ontouchstart !== undefined) {
       dispatcher.registerSource('touch', scope.touchEvents);
+      /*
+       * NOTE: an empty touch listener on body will reactivate nodes imported from templates with touch listeners
+       * Removing it will re-break the nodes
+       *
+       * Work around for https://bugs.webkit.org/show_bug.cgi?id=135628
+       */
+      var isSafari = nav.userAgent.match('Safari') && !nav.userAgent.match('Chrome');
+      if (isSafari) {
+        document.body.addEventListener('touchstart', function(){});
+      }
     }
   }