From 7fb331c24aea5688ccf5941b6f4c998b050625c0 Mon Sep 17 00:00:00 2001
From: q_h <q_h@inbox.ru>
Date: Tue, 15 Jun 2021 20:59:34 +0300
Subject: [PATCH] fix: more reliable testing of localstorage access (#308)

---
 src/uploadx/lib/store.ts | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/uploadx/lib/store.ts b/src/uploadx/lib/store.ts
index fa9c2711..38efb6c7 100644
--- a/src/uploadx/lib/store.ts
+++ b/src/uploadx/lib/store.ts
@@ -14,7 +14,17 @@ class Store {
   }
 }
 
-export const store =
-  typeof window !== 'undefined' && 'localStorage' in window
-    ? new Store()
-    : new Map<string, string>();
+export const store = isLocalStorageAvailable() ? new Store() : new Map<string, string>();
+
+function isLocalStorageAvailable(): boolean {
+  try {
+    const key = 'uploadxLocalStorageTest';
+    const value = 'value';
+    localStorage.setItem(key, value);
+    const getValue = localStorage.getItem(key);
+    localStorage.removeItem(key);
+    return getValue === value;
+  } catch {
+    return false;
+  }
+}