I did lazy loading config in my angular project.
That is done, But there is a problem.

because of my lazy loading component is too big (700kb),
time to load component from web server is too long (0.5s)

I have to show loading component when lazy loading.

But I can not find loading option in angular router module.

I try to find angular router type definition about lazy load.

```js
const routes: Routes = [
  { path: '', component: RandingPageComponent },
  {
    path: 'teams/:name',
    // Loading component cannot here
    loadChildren: 'src/app/domain/domain.module#DomainModule'
  },

  { path: '**', component: NotfoundComponent }
];

```