Test that deleteDatabase is not blocked when connections close in on versionchange callback On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". dbname = "deletedatabase-not-blocked.html" indexedDB.open(dbname) openOnSuccess(): h = event.target.result indexedDB.deleteDatabase(dbname) onVersionChange(): PASS event.target.version is 1 PASS event.oldVersion is 1 PASS event.newVersion is null h.close() deleteDatabaseOnSuccess(): PASS blocked event was not fired PASS successfullyParsed is true TEST COMPLETE