Test that data inserted into IndexedDB does not get corrupted on disk. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". webkitIndexedDB.open('data-corruption') openSuccess(): 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') addData(): transaction = db.transaction([], webkitIDBTransaction.READ_WRITE) request = transaction.objectStore('storeName').add({x: testDate}, 'key') addData(): transaction = db.transaction([], webkitIDBTransaction.READ_ONLY) request = transaction.objectStore('storeName').get('key') PASS event.target.result.x.toString() == testDate.toString() is true PASS successfullyParsed is true TEST COMPLETE