From 850464c6163d9cca5d13fe4d624e462b554c0c29 Mon Sep 17 00:00:00 2001
From: Moonchild <moonchild@palemoon.org>
Date: Wed, 30 Aug 2023 17:46:49 +0200
Subject: [PATCH] [DOM] Deny web notifications if principal can't resolve.

---
 dom/notification/Notification.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/dom/notification/Notification.cpp b/dom/notification/Notification.cpp
index 9a7c833794..5439a4fe59 100644
--- a/dom/notification/Notification.cpp
+++ b/dom/notification/Notification.cpp
@@ -1688,6 +1688,11 @@ Notification::GetPermissionInternal(nsISupports* aGlobal, ErrorResult& aRv)
   }
 
   nsCOMPtr<nsIPrincipal> principal = sop->GetPrincipal();
+  if (!principal) {
+    aRv.Throw(NS_ERROR_UNEXPECTED);
+    return NotificationPermission::Denied;
+  }
+
   return GetPermissionInternal(principal, aRv);
 }