Angular refreshing version

angular.json

{
	"assets":[
	  "src/config.json "
	]
}

app.component.ts

export class AppComponent {
  constructor(private version: VersionService, private router: Router) {
    router.events.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd)).subscribe((e: NavigationEnd) => {
       this.version.checkApp();
    });
  }
}

version.config

{
	version:"1.9"
}

version.service.ts

 
export class VersionService {
  constructor(private http: HttpClient) {}

  checkApp(): void {
    const currentVersion = localStorage.getItem("version");

    this.fetchConfig().subscribe(response => {
      const newVersion = response['version'];
      if (!currentVersion) {
        localStorage.setItem("version", newVersion);
      } else {
        if (newVersion != currentVersion) {
          localStorage.setItem("version", newVersion);
          location.reload();
        }
      }
    });
  }

  private fetchConfig(): Observable<any> {
    const timeNow = new Date().getTime();
    const appSite = `${environment.appSite}/config.json?v=${timeNow}`;

    return this.http.get(appSite);
  }
}