From 2c20abc87245160229a48a8813df1c0c077a369e Mon Sep 17 00:00:00 2001
From: Dan Brown <ssddanbrown@googlemail.com>
Date: Mon, 4 Sep 2023 11:25:05 +0100
Subject: [PATCH] WYSIWYG: Fixed filtering issue causing broken page edits

Could error upon div elements without classes, including drawings.

Related to #4510 and #4509
---
 resources/js/wysiwyg/filters.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/resources/js/wysiwyg/filters.js b/resources/js/wysiwyg/filters.js
index 4dd600630..dee5df4c2 100644
--- a/resources/js/wysiwyg/filters.js
+++ b/resources/js/wysiwyg/filters.js
@@ -24,7 +24,9 @@ function setupBrFilter(editor) {
 function setupPointerFilter(editor) {
     editor.parser.addNodeFilter('div', nodes => {
         for (const node of nodes) {
-            if (node.attr('id') === 'pointer' || node.attr('class').includes('pointer')) {
+            const id = node.attr('id') || '';
+            const nodeClass = node.attr('class') || '';
+            if (id === 'pointer' || nodeClass.includes('pointer')) {
                 node.remove();
             }
         }