попробуйте это.
import { Injectable } from '@angular/core';
import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot } from
'@angular/router';
import { Observable } from 'rxjs/Observable';
import { AuthService } from './auth.service';
import {Router} from '@angular/router';
@Injectable()
export class GuestGuard implements CanActivate {
constructor(private auth: AuthService,
private myRoute: Router){
}
canActivate(
next: ActivatedRouteSnapshot,
state: RouterStateSnapshot): Observable<boolean> | Promise<boolean> | boolean {
this.myRoute.parent.url.subscribe(urlPath => {
this.url = urlPath[urlPath.length - 1].path;
});
}
if(this.url === 'abcd.hk'){
this.myRoute.navigate(['/login]);
return true;
} else{
return false;
}
}
}