This test makes sure that two read-only transactions to an object store are active at the same time. 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) Upgrade needed: Old version - 0 New version - 1 versionchange transaction completed Success opening database connection - request 1 Success opening database connection - request 2 Two transactions open at once. Yay. PASS successfullyParsed is true TEST COMPLETE