From a56475c371751a9425914dbc46707aeea4095c18 Mon Sep 17 00:00:00 2001
From: Alex Hinson <alexmhinson@gmail.com>
Date: Fri, 5 Oct 2018 16:02:41 -0400
Subject: [PATCH] Make window.navigator.userAgent check more defensive for
 React Native (#3975)

---
 packages/apollo-client/src/ApolloClient.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/apollo-client/src/ApolloClient.ts b/packages/apollo-client/src/ApolloClient.ts
index 6c5bac03e08..b729fcc4319 100644
--- a/packages/apollo-client/src/ApolloClient.ts
+++ b/packages/apollo-client/src/ApolloClient.ts
@@ -171,6 +171,7 @@ export default class ApolloClient<TCacheShape> implements DataProxy {
           // Only for Chrome
           if (
             window.navigator &&
+            window.navigator.userAgent &&
             window.navigator.userAgent.indexOf('Chrome') > -1
           ) {
             // tslint:disable-next-line