Revert "Add CORS to create session and make it return text plain session ID"

This reverts commit c81a712a28.

api.go

@@ -79,7 +79,7 @@ func main() {
 		}
 	}).Methods("GET")
 
-	r.Handle("/", c.Handler(http.HandlerFunc(handlers.NewSession))).Methods("POST")
+	r.HandleFunc("/", handlers.NewSession).Methods("POST")
 
 	n := negroni.Classic()
 	n.UseHandler(r)

handlers/new_session.go

@@ -21,11 +21,6 @@ func NewSession(rw http.ResponseWriter, req *http.Request) {
 		log.Println(err)
 		//TODO: Return some error code
 	} else {
-		// If request is not a form, return sessionId in the body
-		if req.Header.Get("Content-Type") != "application/x-www-form-urlencoded" {
-			rw.Write([]byte(s.Id))
-			return
-		}
 		http.Redirect(rw, req, fmt.Sprintf("/p/%s", s.Id), http.StatusFound)
 	}
 }