I suspect we originally started using WebSockets because of the bandwagon, but it still feels like what we want. We use them to subscribe to various message fe

I suspect we originally started using WebSockets because of the bandwagon, but it still feels like what we want. We use them to subscribe to various message feeds; client->server messages are used to add/remove subscriptions and server->client push messages that are on the subscribed feeds. We have a small abstraction over the browser WebSocket object that gives auto-reconnect (and catches disconnects through polling frames) and an interface that looks more like a Node.js EventEmitter. We fall back to (normal) polling if the socket takes more than a few seconds to connect.