From a0195d6b497b5baeb0c160214e065994a8e99308 Mon Sep 17 00:00:00 2001
From: Ross <xkjq@ymail.com>
Date: Fri, 28 Aug 2020 22:26:12 +0100
Subject: [PATCH] fix undefined el

---
 js/viewer.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/js/viewer.js b/js/viewer.js
index d965ad9..b756a35 100644
--- a/js/viewer.js
+++ b/js/viewer.js
@@ -537,6 +537,7 @@ export function openMainImage(current_question, t, source) {
       if (figure_to_load == open_figure) {
         return;
       } else {
+        let el;
         el = document.getElementById("dicom-image");
         if (el != undefined) {
           cornerstone.disable(el);