From dbb081359c4c2f883f9e68ab9d81d69aa2f1c978 Mon Sep 17 00:00:00 2001
From: Nick J Moss <nick.moss000@gmail.com>
Date: Fri, 27 Oct 2023 09:49:37 -0600
Subject: [PATCH] Add Optional Chaining to `isNodePre` Method (#5157)

---
 packages/lexical/src/nodes/LexicalTextNode.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/lexical/src/nodes/LexicalTextNode.ts b/packages/lexical/src/nodes/LexicalTextNode.ts
index 1fc4a6cdac4..de9585477aa 100644
--- a/packages/lexical/src/nodes/LexicalTextNode.ts
+++ b/packages/lexical/src/nodes/LexicalTextNode.ts
@@ -1138,6 +1138,8 @@ function isNodePre(node: Node): boolean {
   return (
     node.nodeName === 'PRE' ||
     (node.nodeType === DOM_ELEMENT_TYPE &&
+      (node as HTMLElement).style !== undefined &&
+      (node as HTMLElement).style.whiteSpace !== undefined &&
       (node as HTMLElement).style.whiteSpace.startsWith('pre'))
   );
 }