Reload component after back from redirection in angular 8

Question

I make a external redirection with window.location.href to another page, but as external page take too much time to load, i show a spinner in my page (managed with loadingRedirection flag). But when i go back to my page, flag still true. I put to false in ngOnInit, but angular doesnt detect changes. i tried also call ChangeDetectorRef.detectChanges(), but still not working This is my component

@Component({
selector: 'app-landing',
templateUrl: './landing.component.html',
})
export class LandingComponent implements OnInit {
loadingRedirection = false;
constructor() {}
goToGoogle() {
  this.loadingRedirection = true;
  window.location.href = 'https://google.es';
}
ngOnInit(): void {
  this.loadingRedirection = false;
console.log(this.loadingRedirection); // show false
}
}

And my simplified html page

<a (click)="goToGoogle()">Go to Google</a>
{{loadingRedirection}} <!-- Shows true after load after go back -->
<app-loader *ngIf="loadingRedirection"></app-loader>

<main *ngIf="!loadingRedirection">
  My code...
</main>

I also tried to use ngOnDestroy, but its not a solution since its called when i click the link