← Stop Electing a Leader Tab. SharedWorker Just Holds the Connection.Quiz
SharedWorker — one connection, many tabs
Seven questions on how SharedWorker actually works: the connect event, port.start(), its lifecycle across tabs, the disconnect gotcha, and where it does (and doesn't) replace a leader-election pattern.
questions7
pass mark70%
resultsat the end
No account needed. Answer all 7 questions, then see your score with every answer explained and a reference to the spec or MDN — pass and you can claim a certificate.