test if path exist with ghost clicks events (#4703)

Polymer · Dec 21, 2017 · 7b6ff53 · 7b6ff53
1 parent bd1792a
commit 7b6ff53
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/src/standard/gestures.html b/src/standard/gestures.html
@@ -89,9 +89,11 @@
     // disable "ghost clicks"
     if (mouseEvent.type === 'click') {
       var path = Polymer.dom(mouseEvent).path;
-      for (var i = 0; i < path.length; i++) {
-        if (path[i] === POINTERSTATE.mouse.target) {
-          return;
+      if (path) {
+        for (var i = 0; i < path.length; i++) {
+          if (path[i] === POINTERSTATE.mouse.target) {
+            return;
+          }
         }
       }
       mouseEvent.preventDefault();