node.js - Angular2 rest calls in background -

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i created sample application per jhon papa's example.(quick start program). designed service class json data rest service http://localhost:8081//myserver/rest/heros

import { injectable } '@angular/core'; import { http, response , headers} '@angular/http'; import 'rxjs/add/operator/topromise'; import { hero } './hero'; import { code } './code'; import { heroes } './mock-heroes';  @injectable() export class heroservice {     constructor(private http: http) { }            private heroesurl = 'http://localhost:8081//myserver/rest/heros';  // url web api       getheroes() {         return this.http.get(this.heroesurl)             .topromise()             .then(             response => response.json() hero[])             .catch(this.handleerror);     }     gethero(id: number) {         return this.getheroes()             .then(heroes => heroes.find(hero => hero.id === id));     }      private handleerror(error: any) {         console.error('an error occurred', error);         return promise.reject(error.message || error);     } }

the service class working fine , heroes listed in ui well(just forget cros orgin problem here). one-thing noticed here rest call http://localhost:8081//myserver/rest/heros directly sent browser(i can see in network tab of developer tool).

according application should not send browser, instead should processed on backend bean classes in jsf , serve data relevant component. belive resolve cros orgin problem well. dose angular2 has such option ? please suggest right way achieve it.

you can use webworkers move code execution out of main ui thread. angular2 provides direct support (experimental).

i doubt change in regard cors. cors work, server needs respond correct cors headers.

see http://www.syntaxsuccess.com/viewarticle/web-workers-in-angular-2.0


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