fix: check window is defined before using it (#962)

graphql · Sep 24, 2019 · e4866ad · e4866ad
1 parent 7762c3d
commit e4866ad
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/packages/graphiql/src/utility/StorageAPI.js b/packages/graphiql/src/utility/StorageAPI.js
@@ -7,7 +7,8 @@
 
 export default class StorageAPI {
   constructor(storage) {
-    this.storage = storage || window.localStorage;
+    this.storage =
+      storage || (typeof window !== 'undefined' ? window.localStorage : null);
   }
 
   get(name) {