From edb3a5a8dc3fbe40bdc7ff66736c375c00c246ee Mon Sep 17 00:00:00 2001
From: Stefan Varga <stefan@demostack.com>
Date: Tue, 24 Sep 2024 16:12:59 +0200
Subject: [PATCH] Null check added when resolving event's priority

---
 .../react-dom-bindings/src/client/ReactDOMUpdatePriority.js     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/react-dom-bindings/src/client/ReactDOMUpdatePriority.js b/packages/react-dom-bindings/src/client/ReactDOMUpdatePriority.js
index 4f422a06732e3..400e1f53d61a7 100644
--- a/packages/react-dom-bindings/src/client/ReactDOMUpdatePriority.js
+++ b/packages/react-dom-bindings/src/client/ReactDOMUpdatePriority.js
@@ -38,7 +38,7 @@ export function resolveUpdatePriority(): EventPriority {
     return updatePriority;
   }
   const currentEvent = window.event;
-  if (currentEvent === undefined) {
+  if (currentEvent === undefined || currentEvent === null) {
     return DefaultEventPriority;
   }
   return getEventPriority(currentEvent.type);