From df87d7d1a82c6df8573ffb963f37fdf7c9ea95aa Mon Sep 17 00:00:00 2001
From: * <8>
Date: Wed, 7 Sep 2022 22:17:12 +0800
Subject: [PATCH] Match-id-1e1386ee22959f5efdcccba603bbc688994eec6a

---
 libs/horizon/src/event/EventWrapper.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/horizon/src/event/EventWrapper.ts b/libs/horizon/src/event/EventWrapper.ts
index 9ca6aa9a..37098a8e 100644
--- a/libs/horizon/src/event/EventWrapper.ts
+++ b/libs/horizon/src/event/EventWrapper.ts
@@ -58,7 +58,7 @@ export class WrappedEvent {
     this.type = nativeEvtName;
 
     // 兼容IE的event key
-    const orgKey = (nativeEvent as any).key;
+    const orgKey = (nativeEvent as any).key ?? '';
     this.key = uniqueKeyMap.get(orgKey) || orgKey;
   }