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The bootstrap terminal event may replay to a new control connection. session.update.done is not retained or replayed. There is no guaranteed global order between these event types. Handle unfamiliar reasons without failing. The terminal result for the opening.

Event fields

string, server-generated event ID.
required
always session.bootstrap.opening.done.
required
bootstrap.opening.done`.
completed, cancelled, | failed.
required
string, present only for cancelled | failed results, such as superseded | session_shutdown.
These events describe server-side processing. Use the player state to determine whether the browser is displaying the result.