From b03198a90a57e720f1f88eb4a981521fcf11ea33 Mon Sep 17 00:00:00 2001
From: Gert Hengeveld <info@ghengeveld.nl>
Date: Thu, 23 Jan 2025 21:01:09 +0100
Subject: [PATCH] docs: Fix sample code to avoid reading from `undefined` in
 `didAuthError` (#3723)

---
 docs/advanced/authentication.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/advanced/authentication.md b/docs/advanced/authentication.md
index 8044fc6d55..b923002638 100644
--- a/docs/advanced/authentication.md
+++ b/docs/advanced/authentication.md
@@ -207,7 +207,7 @@ authExchange(async utils => {
   return {
     // ...
     didAuthError(error, _operation) {
-      return error.response.status === 401;
+      return error.response?.status === 401;
     },
   };
 });