send() doesn't throw an error if client is disconnected

[timwis]

I'm implementing a broadcast function by storing an array of the clients as they join, via the connection event. The broadcast function then loops through the array and sends to each client. Since there's no disconnect event with SSEs, my thought was to wrap the send in a try/catch block and, if it throws an error, remove the client from the array so they're not in there next time. But send() doesn't seem to throw an error even if the client is long gone. So the list of clients potentially gets gigantic.

Any suggestions?