OK /IndexedDB/idbtransaction-oncomplete.any.sharedworker.html
FAIL [expected PASS] subtest: IDBTransaction - complete event
assert_array_equals: lengths differ, expected array ["upgradeneeded", "complete", "success", "opencursor"] length 4, got ["upgradeneeded", "complete", "success"] length 3
Likely same underlying problem as #42845 and #42804.