Test IndexedDB createObjectStore name argument is required On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". indexedDB = self.indexedDB || self.webkitIndexedDB || self.mozIndexedDB || self.msIndexedDB || self.OIndexedDB; dbname = "createObjectStore-name-argument-required.html" indexedDB.deleteDatabase(dbname) indexedDB.open(dbname) db = event.target.result PASS db.createObjectStore(); threw exception TypeError: Not enough arguments. PASS successfullyParsed is true TEST COMPLETE