[Meteor1.7 Deployment] Failed to load resource: net::ERR_CONNECTION_REFUSED

I deploy Meteor1.7 by MUP.
Deploying is work fine, but have problem when open project.
(It work fine on Local)

I base on Vue-Component

It may error with Vue Router

import...

const router = new VueRouter({
  mode: "history",
  routes: routes
});

Meteor.startup(() => {
  // Start the vue app
  new Vue({
    router,
    render: h => h(App)
  }).$mount("app");
});

And then I try to don’t use Vue Router feature (one page), It work fine

Now I found bug with dynamic import in my routes

const routes = [
  {
    path: "/",
    name: "home",
    component: () => import('./Home.vue')
  }
];

Please advise