Releases · share/sharedb

#522 — add receivePresence middleware hook
#524 — deprecate sending sendPresence middleware errors to subscribers. The new behaviour will output errors to a new Backend error handler, which logs to console by default, and whose behaviour can be overridden by setting:
new Backend({errorHandler: (error, context) => {}});
To opt in to the new behaviour, set:
new Backend({doNotForwardSendPresenceErrorsToClient: true});
At the moment, this error handler will only handle these sendPresence middleware errors, but in the future may be expanded to handle other non-fatal ShareDB errors which are currently just logged.

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