Test IndexedDB adding an autoincremented key and retrieving it successfully 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; indexedDB.deleteDatabase(dbname) indexedDB.open(dbname) test = { name: 'inline key; key generator', autoIncrement: true, storedObject: { name: 'Lincoln' }, keyName: 'id', }; objectStore = db.createObjectStore(test.name, { keyPath: test.keyName, autoIncrement: test.autoIncrement }); request = objectStore.add(test.storedObject); id = event.target.result; request = objectStore.get(id); PASS event.target.result.name is test.storedObject.name PASS event.target.result.id is id PASS successfullyParsed is true TEST COMPLETE