1 files changed, 8 insertions, 6 deletions
diff --git a/ext/webstorage/01_webstorage.js b/ext/webstorage/01_webstorage.js
index e71aafade..7ed7b6618 100644
--- a/ext/webstorage/01_webstorage.js
+++ b/ext/webstorage/01_webstorage.js
@@ -25,12 +25,12 @@
     }
 
     get length() {
-      webidl.assertBranded(this, Storage);
+      webidl.assertBranded(this, StoragePrototype);
       return core.opSync("op_webstorage_length", this[_persistent]);
     }
 
     key(index) {
-      webidl.assertBranded(this, Storage);
+      webidl.assertBranded(this, StoragePrototype);
       const prefix = "Failed to execute 'key' on 'Storage'";
       webidl.requiredArguments(arguments.length, 1, { prefix });
       index = webidl.converters["unsigned long"](index, {
@@ -42,7 +42,7 @@
     }
 
     setItem(key, value) {
-      webidl.assertBranded(this, Storage);
+      webidl.assertBranded(this, StoragePrototype);
       const prefix = "Failed to execute 'setItem' on 'Storage'";
       webidl.requiredArguments(arguments.length, 2, { prefix });
       key = webidl.converters.DOMString(key, {
@@ -61,7 +61,7 @@
     }
 
     getItem(key) {
-      webidl.assertBranded(this, Storage);
+      webidl.assertBranded(this, StoragePrototype);
       const prefix = "Failed to execute 'getItem' on 'Storage'";
       webidl.requiredArguments(arguments.length, 1, { prefix });
       key = webidl.converters.DOMString(key, {
@@ -73,7 +73,7 @@
     }
 
     removeItem(key) {
-      webidl.assertBranded(this, Storage);
+      webidl.assertBranded(this, StoragePrototype);
       const prefix = "Failed to execute 'removeItem' on 'Storage'";
       webidl.requiredArguments(arguments.length, 1, { prefix });
       key = webidl.converters.DOMString(key, {
@@ -85,11 +85,13 @@
     }
 
     clear() {
-      webidl.assertBranded(this, Storage);
+      webidl.assertBranded(this, StoragePrototype);
       core.opSync("op_webstorage_clear", this[_persistent]);
     }
   }
 
+  const StoragePrototype = Storage.prototype;
+
   function createStorage(persistent) {
     const storage = webidl.createBranded(Storage);
     storage[_persistent] = persistent;