GUACAMOLE-1204: Allow pinch/drag touch gestures to be tracked in addition to any local touch event pass-through.

guacamole/src/main/webapp/app/touch/directives/guacTouchPinch.js

@@ -159,8 +159,6 @@ angular.module('touch').directive('guacTouchPinch', [function guacTouchPinch() {
             element.addEventListener("touchmove", function pinchTouchMove(e) {
                 if (e.touches.length === 2) {
 
-                    e.stopPropagation();
-
                     // Calculate current zoom level
                     currentLength = pinchDistance(e);
 
@@ -188,8 +186,6 @@ angular.module('touch').directive('guacTouchPinch', [function guacTouchPinch() {
 
                 if (startLength && e.touches.length < 2) {
 
-                    e.stopPropagation();
-
                     // Notify of pinch end
                     if (guacTouchPinch) {
                         $scope.$apply(function pinchComplete() {