From 7993d19c1b4ba2a6303ef90e7acbfb51971003f2 Mon Sep 17 00:00:00 2001
From: Henk Jan Pluim <henkjan.pluim@greenchoice.nl>
Date: Mon, 25 Apr 2022 10:02:06 +0200
Subject: [PATCH] #fix 12254 return emptyresult

---
 src/Umbraco.Web.BackOffice/Controllers/PreviewController.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Umbraco.Web.BackOffice/Controllers/PreviewController.cs b/src/Umbraco.Web.BackOffice/Controllers/PreviewController.cs
index 303ad44423..5f41682ee4 100644
--- a/src/Umbraco.Web.BackOffice/Controllers/PreviewController.cs
+++ b/src/Umbraco.Web.BackOffice/Controllers/PreviewController.cs
@@ -131,7 +131,7 @@ namespace Umbraco.Cms.Web.BackOffice.Controllers
             var user = _backofficeSecurityAccessor.BackOfficeSecurity?.CurrentUser;
             _cookieManager.SetCookieValue(Constants.Web.PreviewCookieName, "preview");
 
-            return null;
+            return new EmptyResult();
         }
 
         public ActionResult End(string? redir = null)