From 7e6445ac3de05ce885cc66b325b3c34e0833c1fa Mon Sep 17 00:00:00 2001
From: Rod Vagg <rod@vagg.org>
Date: Tue, 2 Dec 2025 16:02:21 +1100
Subject: [PATCH] fix: handle incomplete localStorage in Node.js v25

Closes https://github.com/mswjs/msw/issues/2624
---
 src/core/utils/cookieStore.ts | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/core/utils/cookieStore.ts b/src/core/utils/cookieStore.ts
index b13cbccb7..b62a0e603 100644
--- a/src/core/utils/cookieStore.ts
+++ b/src/core/utils/cookieStore.ts
@@ -36,7 +36,10 @@ class CookieStore {
   }
 
   private getCookieStoreIndex(): MemoryCookieStoreIndex {
-    if (typeof localStorage === 'undefined') {
+    if (
+      typeof localStorage === 'undefined' ||
+      typeof localStorage.getItem !== 'function'
+    ) {
       return {}
     }
 
@@ -66,7 +69,10 @@ class CookieStore {
   }
 
   private persist(): void {
-    if (typeof localStorage === 'undefined') {
+    if (
+      typeof localStorage === 'undefined' ||
+      typeof localStorage.setItem !== 'function'
+    ) {
       return
     }