apiRouter.MethodNotAllowedHandler = collectAPIStats("methodnotallowed", httpTraceAll(methodNotAllowedHandler("S3")))
}

// corsHandler handler for CORS (Cross Origin Resource Sharing)
func corsHandler(handler http.Handler) http.Handler {
	commonS3Headers := []string{
		xhttp.Date,
		xhttp.ETag,
		xhttp.ServerInfo,
		xhttp.Connection,
		xhttp.AcceptRanges,

		}
		// Allow grid to start after registering all services.
		close(globalGridStart)
		close(globalLockGridStart)

		httpServer := xhttp.NewServer(getServerListenAddrs()).
			UseHandler(setCriticalErrorHandler(corsHandler(handler))).
			UseTLSConfig(newTLSConfig(getCert)).
			UseIdleTimeout(globalServerCtxt.IdleTimeout).
			UseReadHeaderTimeout(globalServerCtxt.ReadHeaderTimeout).
			UseBaseContext(GlobalContext).

	if err != nil {
		t.Fatalf("Failed to configure one of the RPC services <ERROR> %s", err)
	}

	// Run TestServer.
	testServer.Server = httptest.NewUnstartedServer(setCriticalErrorHandler(corsHandler(httpHandler)))

	globalObjLayerMutex.Lock()
	globalObjectAPI = objLayer
	globalObjLayerMutex.Unlock()

	// initialize peer rpc
	host, port := mustSplitHostPort(testServer.Server.Listener.Addr().String())