Running spdy with negroni results in no spdy support.

[ssoroka]

Running spdy with negroni results in no spdy support.

Example code:

import (
  "github.com/codegangsta/negroni"
  "github.com/SlyMarbo/spdy"
  "net/http"
  "fmt"
)

mux := http.NewServeMux()
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "%f", spdy.SPDYversion(w))
})
n := negroni.New()
n.UseHandler(mux)

err := spdy.ListenAndServeTLS(":443", "cert.pem", "key.pem", n)

[SlyMarbo]

This is because Negroni is wrapping the http.ResponseWriter in its own structure, so spdy.SPDYversion can't see the spdy ResponseWriter. However, it should still be using SPDY. Negroni doesn't export their ResponseWriter (negroni.responseWriter), so it's tricky to solve without Negroni changing their API.