From 37ce825dc1d719fe04c59998eae5457fce78502c Mon Sep 17 00:00:00 2001
From: gorhill <rhill@raymondhill.net>
Date: Thu, 17 Aug 2017 11:23:19 -0400
Subject: [PATCH] fix https://github.com/gorhill/uBlock/issues/2824

---
 platform/chromium/vapi-common.js | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/platform/chromium/vapi-common.js b/platform/chromium/vapi-common.js
index e6a3a70..932ce9b 100644
--- a/platform/chromium/vapi-common.js
+++ b/platform/chromium/vapi-common.js
@@ -91,7 +91,31 @@ vAPI.closePopup = function() {
 // This storage is optional, but it is nice to have, for a more polished user
 // experience.
 
-vAPI.localStorage = self.localStorage;
+// This can throw in some contexts (like in devtool).
+try {
+    vAPI.localStorage = self.localStorage;
+} catch (ex) {
+}
+
+// https://github.com/gorhill/uBlock/issues/2824
+//   Use a dummy localStorage if for some reasons it's not available.
+if ( vAPI.localStorage instanceof Object === false ) {
+    vAPI.localStorage = {
+        length: 0,
+        clear: function() {
+        },
+        getItem: function() {
+            return null;
+        },
+        key: function() {
+            throw new RangeError();
+        },
+        removeItem: function() {
+        },
+        setItem: function() {
+        }
+    };
+}
 
 /******************************************************************************/