From d4ebee21795e66e7276f18c51b380250ef71877a Mon Sep 17 00:00:00 2001
From: kai <zwu52@uw.edu>
Date: Mon, 23 Aug 2021 11:32:27 -0700
Subject: [PATCH] Update registerMessagingCompat.ts

---
 .../messaging-compat/src/registerMessagingCompat.ts    | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/packages-exp/messaging-compat/src/registerMessagingCompat.ts b/packages-exp/messaging-compat/src/registerMessagingCompat.ts
index 0dbd5d1ceef..79c931857d2 100644
--- a/packages-exp/messaging-compat/src/registerMessagingCompat.ts
+++ b/packages-exp/messaging-compat/src/registerMessagingCompat.ts
@@ -34,17 +34,17 @@ declare module '@firebase/component' {
 const messagingCompatFactory: InstanceFactory<'messaging-compat'> = (
   container: ComponentContainer
 ) => {
-  if (!!navigator) {
-    // in window
+  if (self && 'ServiceWorkerGlobalScope' in self) {
+    // in sw
     return new MessagingCompatImpl(
       container.getProvider('app-compat').getImmediate(),
-      container.getProvider('messaging-exp').getImmediate()
+      container.getProvider('messaging-sw-exp').getImmediate()
     );
   } else {
-    // in sw
+    // in window
     return new MessagingCompatImpl(
       container.getProvider('app-compat').getImmediate(),
-      container.getProvider('messaging-sw-exp').getImmediate()
+      container.getProvider('messaging-exp').getImmediate()
     );
   }
 };