How to include a custom authentication token AFTER connect

[thebarndog]

Once a client is connected, how can I attach custom headers that will be applied on the very next emit?

I'm using the client to retrieve an authentication token and then I want to attach that token to the client but .connectParams and .extraHeaders are only sent on the original connection.

[nuclearace]

Sorry it took so long to get around to this. A note about this: it'll only affect the initial connection or when forcing http long-polling. Once a WebSocket connection is established the headers aren't sent again.