OptionalcontextOptionalidleTears a connection down after this many milliseconds without an
incoming frame; see HandleMuxedBidiSocketOptions.idleTimeoutMs.
OptionalpathThe path to accept WebSocket upgrades on when using upgrade().
Defaults to "/websocket". Has no effect on handleConnection().
OptionalwebOptions forwarded to the underlying ws.WebSocketServer used by
upgrade(). noServer is always set by upgrade() and cannot be
overridden here.
Context values made available to handler implementations.