func GroupPopApp(cocs backend.Cocaine, w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
name := vars["name"]
app := vars["app"]
err := cocs.GroupPopApp(name, app)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
fmt.Fprint(w, "OK")
}
