router-outlet works incorrect

Question

Component that loading Router is rendering outside router-outlet app.component.ts

@Component({
    selector  : "body",
    template  : `<router-outlet></router-outlet>`,
    directives: [ROUTER_DIRECTIVES]
})
@RouteConfig([
    {path: "/auth/login", name: "Auth", component: AuthComponent},
    {path: "/...", name: "Default", component: DefaultComponent}
])
export class AppComponent {
    constructor(private _router: Router) {
    }
}

default.component.ts

@Component({
    template  : `
    <header-view></header-view>
    <router-outlet></router-outlet>
`,
    directives: [HeaderComponent, ROUTER_DIRECTIVES]
})
@RouteConfig([
    {path: "/", name: "LevelsList", component: LevelListComponent, useAsDefault: true}
])
export class DefaultComponent {
    constructor(private _router: Router) {}
}

Console has no error. While inspecting an element I see that router-outlet is empty and component is rendering after it.

Answer 1

This is by design. There is a related open issue https://github.com/angular/angular/issues/8529 but I didn't get the impression this is something that is considered for being changed.