From 4f97bc871c7803f5ab182f761715d0c876570842 Mon Sep 17 00:00:00 2001
From: guvial <gvial@vial-family.ch>
Date: Sat, 18 Mar 2017 13:25:52 +0100
Subject: [PATCH] Prevent redirect to blank after drag and drop (FF) (#2871)

Fix proposal for issue #2842

More details here : #2842
---
 lib/timeline/Core.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/timeline/Core.js b/lib/timeline/Core.js
index 01bf3993..8fbf0e97 100644
--- a/lib/timeline/Core.js
+++ b/lib/timeline/Core.js
@@ -245,6 +245,9 @@ Core.prototype._create = function (container) {
   }
 
   function handleDrop(event) {
+    // prevent redirect to blank page - Firefox
+    if(event.preventDefault) { event.preventDefault(); }
+    if(event.stopPropagation) { event.stopPropagation(); }
     // return when dropping non-vis items 
     try {
       var itemData = JSON.parse(event.dataTransfer.getData("text"))