From 0ffa616f100fb340944ccb38e8b6f85020e10c51 Mon Sep 17 00:00:00 2001
From: RubaXa <ibnRubaXa@gmail.com>
Date: Fri, 26 Dec 2014 09:20:11 +0300
Subject: [PATCH] #199: + check 'dataTransfer' exists

---
 Sortable.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Sortable.js b/Sortable.js
index 5d10475..44a02e5 100644
--- a/Sortable.js
+++ b/Sortable.js
@@ -372,8 +372,10 @@
 				this._loopId = setInterval(this._emulateDragOver, 150);
 			}
 			else {
-				dataTransfer.effectAllowed = 'move';
-				options.setData && options.setData.call(this, dataTransfer, dragEl);
+				if (dataTransfer) {
+					dataTransfer.effectAllowed = 'move';
+					options.setData && options.setData.call(this, dataTransfer, dragEl);
+				}
 
 				_on(document, 'drop', this);
 			}