From 62f3e8909648f8b541a10aad783294a30362f5b0 Mon Sep 17 00:00:00 2001
From: Artur Arseniev <artur.catch@hotmail.it>
Date: Mon, 18 Feb 2019 22:45:12 +0100
Subject: [PATCH] Fix issue in Sorter when no canvasOffset is set

---
 src/utils/Sorter.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/utils/Sorter.js b/src/utils/Sorter.js
index 9392749cd..75d62210e 100644
--- a/src/utils/Sorter.js
+++ b/src/utils/Sorter.js
@@ -83,7 +83,7 @@ module.exports = Backbone.View.extend({
    * Triggered when the offset of the editro is changed
    */
   udpateOffset() {
-    var offset = this.em.get('canvasOffset');
+    const offset = this.em.get('canvasOffset') || {};
     this.offTop = offset.top;
     this.offLeft = offset.left;
   },