Occasionally when connecting to Pusher, we get no welcome message, and thus no session ID to use for future posts etc. This causes us to stall.

terminate() is called by 3 diffrent defere states, and will run about the same time.

WARNING: DATA RACE
Read by goroutine 54:
github.com/zond/pusher/hub.(_Session).terminate()
/Users/jimmywennlund/go/src/github.com/zond/pusher/hub/hub.go:434 +0x2a0
github.com/zond/pusher/hub.(_Session).Handle()
/Users/jimmywennlund/go/src/github.com/zond/pusher/hub/hub.go:481 +0x628
github.com/zond/pusher/hub.(_Session).handleWS()
/Users/jimmywennlund/go/src/github.com/zond/pusher/hub/hub.go:440 +0xd1
github.com/zond/pusher/hub._Session.(github.com/zond/pusher/hub.handleWS)·fm()
/Users/jimmywennlund/go/src/github.com/zond/pusher/hub/hub.go:192 +0x3d
code.google.com/p/go.net/websocket.Server.serveWebSocket()
/Users/jimmywennlund/go/src/code.google.com/p/go.net/websocket/server.go:98 +0x279
code.google.com/p/go.net/websocket.Handler.ServeHTTP()
/Users/jimmywennlund/go/src/code.google.com/p/go.net/websocket/server.go:121 +0xad
github.com/zond/pusher/hub.(_Server).ServeHTTP()
/Users/jimmywennlund/go/src/github.com/zond/pusher/hub/hub.go:192 +0x35b
net/http.serverHandler.ServeHTTP()
/usr/local/go/src/pkg/net/http/server.go:1597 +0x1ca
net/http.(_conn).serve()
/usr/local/go/src/pkg/net/http/server.go:1167 +0xc00

Previous write by goroutine 61:
github.com/zond/pusher/hub.(_Session).terminate()
/Users/jimmywennlund/go/src/github.com/zond/pusher/hub/hub.go:435 +0x36c
github.com/zond/pusher/hub.(_Session).writeLoop()
/Users/jimmywennlund/go/src/github.com/zond/pusher/hub/hub.go:304 +0x3a7

Goroutine 54 (running) created at:
net/http.(_Server).Serve()
/usr/local/go/src/pkg/net/http/server.go:1644 +0x2c1
net/http.(_Server).ListenAndServe()
/usr/local/go/src/pkg/net/http/server.go:1612 +0xc0
net/http.ListenAndServe()
/usr/local/go/src/pkg/net/http/server.go:1677 +0xb7
main.main()
/Users/jimmywennlund/go/src/github.com/zond/pusher/pusher_server/pusher_server.go:18 +0x39b

Goroutine 61 (finished) created at:
github.com/zond/pusher/hub.(_Session).Handle()
/Users/jimmywennlund/go/src/github.com/zond/pusher/hub/hub.go:458 +0x368
github.com/zond/pusher/hub.(_Session).handleWS()
/Users/jimmywennlund/go/src/github.com/zond/pusher/hub/hub.go:440 +0xd1
github.com/zond/pusher/hub._Session.(github.com/zond/pusher/hub.handleWS)·fm()
/Users/jimmywennlund/go/src/github.com/zond/pusher/hub/hub.go:192 +0x3d
code.google.com/p/go.net/websocket.Server.serveWebSocket()
/Users/jimmywennlund/go/src/code.google.com/p/go.net/websocket/server.go:98 +0x279
code.google.com/p/go.net/websocket.Handler.ServeHTTP()
/Users/jimmywennlund/go/src/code.google.com/p/go.net/websocket/server.go:121 +0xad
github.com/zond/pusher/hub.(_Server).ServeHTTP()
/Users/jimmywennlund/go/src/github.com/zond/pusher/hub/hub.go:192 +0x35b
net/http.serverHandler.ServeHTTP()
/usr/local/go/src/pkg/net/http/server.go:1597 +0x1ca
net/http.(*conn).serve()
/usr/local/go/src/pkg/net/http/server.go:1167 +0xc00

Will the client not resubscribe automaticly...

/J

@jimmyw: we need to either support it, or protect against it.

...since JS doesn't have proper hashmaps pre-ES6, all maps use string based keys.

If the function is JITed, its toString signature will be something similar to function(){ [native code] } which means we can't pick up a reference to it again.

In this case, it's safer to rely on subscriptions[uri] = []; and use [].indexOf to pick up the correct index.

Use window.clearInterval instead of this.clearInterval.