DefaultJSessionID is a default behaviour function to be used in options for JSessionID if JSESSIONID is needed.

NewHandler creates new HTTP handler that conforms to the basic net/http.Handler interface.

active session.

closed session, no activity at all, should be removed from handler completely and not reused.

session being closed, sending "closeFrame" to receivers.

brand new session, need to send "h" to receiver.

DefaultOptions is a convenient set of options to be used for sockjs.

ErrSessionNotOpen error is used to denote session not in open state.

Options type is used for defining various sockjs options.

SessionState defines the current state of the session.