From 5234e97d5eb6159ef8ce3652cd19e4eee0bec7dd Mon Sep 17 00:00:00 2001
From: =?utf8?q?Benjamin=20H=E7=9B=B2ublein?=
 <BenjaminHae@users.noreply.github.com>
Date: Sat, 26 Sep 2015 14:32:14 +0200
Subject: [PATCH] check if element is sortable before removing sortable
 property

---
 htdocs/js/mpd.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/htdocs/js/mpd.js b/htdocs/js/mpd.js
index fb2dd82..b30bd6c 100644
--- a/htdocs/js/mpd.js
+++ b/htdocs/js/mpd.js
@@ -273,7 +273,9 @@ function webSocketConnect() {
                      * some browsers, such as Safari, from changing the normalization form of the
                      * URI from NFD to NFC, breaking our link with MPD.
                      */
-                    $('#salamisandwich > tbody').sortable('destroy');
+                    if ($('#salamisandwich > tbody').is(':ui-sortable')) {
+                        $('#salamisandwich > tbody').sortable('destroy');
+                    }
                     for (var item in obj.data) {
                         switch(obj.data[item].type) {
                             case "directory":
-- 
2.20.1