From 5f40d609d983bb4cbaf2c4c3544176e9fdd681b1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20Lyngs=C3=B8?= <niels.lyngso@gmail.com>
Date: Tue, 24 Jan 2023 16:47:49 +0100
Subject: [PATCH] make sure to only deepFreeze actual objects

---
 src/Umbraco.Web.UI.Client/libs/observable-api/deep-state.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Umbraco.Web.UI.Client/libs/observable-api/deep-state.ts b/src/Umbraco.Web.UI.Client/libs/observable-api/deep-state.ts
index fbf5dbea81..e3235b221c 100644
--- a/src/Umbraco.Web.UI.Client/libs/observable-api/deep-state.ts
+++ b/src/Umbraco.Web.UI.Client/libs/observable-api/deep-state.ts
@@ -3,7 +3,7 @@ import { BehaviorSubject } from "rxjs";
 
 // TODO: Should this handle array as well?
 function deepFreeze<T>(inObj: T): T {
-	if(typeof inObj === 'object') {
+	if(inObj && typeof inObj === 'object') {
 		Object.freeze(inObj);
 
 		Object.getOwnPropertyNames(inObj)?.forEach(function (prop) {