User input typically from a keyboard.

Normal output to the terminal.

Ping to the server.

Pong to the brower.

Notify that the brower size has been changed.

Set terminal preference.

Make terminal to reconnect .

Set window title of the terminal.

Unknown message type, maybe send by a bug.

Unknown message type, maybe set by a bug.

Protocols defines the name of this protocol, which is supposed to be used to the subprotocol of Websocket streams.

copy from ng-common/client-common/lib/http/auth.go.