fix #2824: use dummy localStorage if none available

platform/chromium/vapi-background.js

@@ -1394,7 +1394,7 @@ vAPI.cloud = (function() {
 
     var options = {
         defaultDeviceName: window.navigator.platform,
-        deviceName: window.localStorage.getItem('deviceName') || ''
+        deviceName: vAPI.localStorage.getItem('deviceName') || ''
     };
 
     // This is used to find out a rough count of how many chunks exists:
@@ -1538,7 +1538,7 @@ vAPI.cloud = (function() {
         }
 
         if ( typeof details.deviceName === 'string' ) {
-            window.localStorage.setItem('deviceName', details.deviceName);
+            vAPI.localStorage.setItem('deviceName', details.deviceName);
             options.deviceName = details.deviceName;
         }
 

platform/chromium/vapi-common.js

@@ -100,6 +100,26 @@ try {
 } 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() {
+        }
+    };
+}
+
 /******************************************************************************/
 
 })(this);