cross domain http requst allowed by setting headers.

main.go

 
 func dumpReuestHandler(w http.ResponseWriter, r *http.Request) {
 	logRequestDebug(httputil.DumpRequest(r, true))
-	fmt.Fprintf(w, "")
+	w.Header().Set("Content-Type", "application/json; charset=utf-8")
+	w.Header().Set("Access-Control-Allow-Origin", "*")
+	fmt.Fprintf(w, "{'status':'ok','msg':'done'}")
 }