Verify that queuing up several commands works (and they all fire). On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". webkitIndexedDB.open('queued-commands') db = event.target.result db.setVersion('new version') setVersionSuccess(): trans = event.target.result PASS trans !== null is true Deleted all object stores. db.createObjectStore('storeName') store.createIndex('indexName', 'x') store.add({x: 'value', y: 'zzz'}, 'key') store.add({x: 'value2', y: 'zzz2'}, 'key2') store.put({x: 'valu2', y: 'zz2'}, 'ky2') PASS 0 is 0 PASS 1 is 1 PASS 2 is 2 PASS successfullyParsed is true TEST COMPLETE