browser/src/app/wildcard-routing.module.ts

import { NgModule } from '@angular/core';
import { RouterModule, Routes } from '@angular/router';

const routes: Routes = [
    { path: '**', redirectTo: '' },
];

@NgModule({
    imports: [RouterModule.forChild(routes)],
    exports: [RouterModule],
})
export class WildcardRoutingModule { }