Test IndexedDB's createObjectStore's various options On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS 'webkitIndexedDB' in window is true PASS webkitIndexedDB == null is false webkitIndexedDB.open('create-object-store-options', 'description') db = event.target.result request = db.setVersion('version 1') Deleted all object stores. db.createObjectStore('a', {keyPath: 'a'}) db.createObjectStore('b') db.createObjectStore('c', {autoIncrement: true}); trans = db.transaction([], webkitIDBTransaction.READ_WRITE) PASS trans.mode is webkitIDBTransaction.READ_WRITE trans.objectStore('a').put({'a': 0}) trans.objectStore('b').put({'a': 0}, 0) trans.objectStore('a').get(0) PASS event.target.result.a is {a: 0} trans.objectStore('b').get(0) PASS event.target.result.a is {a: 0} PASS successfullyParsed is true TEST COMPLETE