Regression test for http://webkit.org/b/102547 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". dbname = "object-lookups-in-versionchange.html" indexedDB.deleteDatabase(dbname) indexedDB.open(dbname) db = event.target.result transaction = event.target.transaction store = db.createObjectStore('store') Expecting exception from transaction.objectStore('no-such-store') PASS Exception was thrown. PASS code is DOMException.NOT_FOUND_ERR PASS ename is 'NotFoundError' Exception message: Failed to execute 'objectStore' on 'IDBTransaction': The specified object store was not found. Expecting exception from store.index('no-such-index') PASS Exception was thrown. PASS code is DOMException.NOT_FOUND_ERR PASS ename is 'NotFoundError' Exception message: Failed to execute 'index' on 'IDBObjectStore': The specified index was not found. PASS successfullyParsed is true TEST COMPLETE