Fixed #1127: `doubleClick` event not being fired

HISTORY.md

@@ -7,6 +7,7 @@ http://visjs.org
 ### Timeline
 
 - Fixed #1527: error when creating/updating a Timeline without data.
+- Fixed #1127: `doubleClick` event not being fired.
 
 
 ## 2015-12-18, version 4.11.0

lib/timeline/component/ItemSet.js

@@ -1691,8 +1691,6 @@ ItemSet.prototype._onAddItem = function (event) {
   var snap = this.options.snap || null;
   var item = this.itemFromTarget(event);
 
-  event.stopPropagation();
-
   if (item) {
     // update item