From 7f91bea4dd840736ab52bbb155db51fdbf2484e6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alex=20Mu=C3=B1oz?= <AlexMunoz@users.noreply.github.com>
Date: Wed, 6 Mar 2024 12:51:45 +0100
Subject: [PATCH] fix(loader.ts): fix possible undefined (#141)

If msw is running in fallback mode, navigator.serviceWorker may not be defined.
---
 packages/msw-addon/src/loader.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/msw-addon/src/loader.ts b/packages/msw-addon/src/loader.ts
index 9976699..330981a 100644
--- a/packages/msw-addon/src/loader.ts
+++ b/packages/msw-addon/src/loader.ts
@@ -7,7 +7,7 @@ export const mswLoader = async (context: Context) => {
   if (
     typeof window !== 'undefined' &&
     'navigator' in window &&
-    navigator.serviceWorker.controller
+    navigator.serviceWorker?.controller
   ) {
     // No need to rely on the MSW Promise exactly
     // since only 1 worker can control 1 scope at a time.