From c74b03a1b603904bee72aac2192b9ca6f5cc35cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20Lyngs=C3=B8?= <niels.lyngso@gmail.com>
Date: Wed, 1 Jul 2020 20:10:28 +0200
Subject: [PATCH] check for object before prop

---
 .../blocklist.blockconfiguration.overlay.controller.js        | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Umbraco.Web.UI.Client/src/views/propertyeditors/blocklist/prevalue/blocklist.blockconfiguration.overlay.controller.js b/src/Umbraco.Web.UI.Client/src/views/propertyeditors/blocklist/prevalue/blocklist.blockconfiguration.overlay.controller.js
index a42784f55a..0f58b84ee9 100644
--- a/src/Umbraco.Web.UI.Client/src/views/propertyeditors/blocklist/prevalue/blocklist.blockconfiguration.overlay.controller.js
+++ b/src/Umbraco.Web.UI.Client/src/views/propertyeditors/blocklist/prevalue/blocklist.blockconfiguration.overlay.controller.js
@@ -132,11 +132,11 @@
                     vm.elementTypes[i] = args.documentType;
                 }
             }
-            if (vm.contentPreview.key === key) {
+            if (vm.contentPreview && vm.contentPreview.key === key) {
                 vm.contentPreview = args.documentType;
                 $scope.$evalAsync();
             }
-            if (vm.settingsPreview.key === key) {
+            if (vm.settingsPreview && vm.settingsPreview.key === key) {
                 vm.settingsPreview = args.documentType;
                 $scope.$evalAsync();
             }