From 6ae142986820cc5ac0645e1bc0a3460429c0b8df Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20B=C3=B6hmer?= <Jan.h.boehmer@gmx.de>
Date: Fri, 5 Apr 2019 13:08:26 +0200
Subject: [PATCH] Check if CKEDITOR is defined, before updating them.

---
 assets/ts_src/ajax_ui.ts | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/assets/ts_src/ajax_ui.ts b/assets/ts_src/ajax_ui.ts
index 313d986f..105c8f78 100644
--- a/assets/ts_src/ajax_ui.ts
+++ b/assets/ts_src/ajax_ui.ts
@@ -251,12 +251,13 @@ class AjaxUI {
             beforeSerialize: function() : boolean {
 
                 //Update the content of textarea fields using CKEDITOR before submitting.
-
                 //@ts-ignore
-                for(let name in CKEDITOR.instances)
-                {
+                if(typeof CKEDITOR !== 'undefined') {
                     //@ts-ignore
-                    CKEDITOR.instances[name].updateElement();
+                    for (let name in CKEDITOR.instances) {
+                        //@ts-ignore
+                        CKEDITOR.instances[name].updateElement();
+                    }
                 }
 
                 return true;