http://www.html5rocks.com/tutorials/eventsource/basics/
Also, I don't believe your claims about WebSockets are true. I thought wss:// would allow for SSL secured WebSocket connections...
edit: Googling indeed seems to indicate that wss is ws over TLS. See: http://websocket.org/echo.html for an example.
http://www.html5rocks.com/tutorials/eventsource/basics/