System.config({
  //use typescript for compilation
  transpiler: 'typescript',
  //typescript compiler options
  typescriptOptions: {
    emitDecoratorMetadata: true
  },
  paths: {
    'npm:': 'https://unpkg.com/'
  },
  //map tells the System loader where to look for things
  map: {
    
    'app': './src',
    
    '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
    '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
    '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
    '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
    '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
    '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
    '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
    '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
    
    '@angular/core/testing': 'npm:@angular/core/bundles/core-testing.umd.js',
    '@angular/common/testing': 'npm:@angular/common/bundles/common-testing.umd.js',
    '@angular/compiler/testing': 'npm:@angular/compiler/bundles/compiler-testing.umd.js',
    '@angular/platform-browser/testing': 'npm:@angular/platform-browser/bundles/platform-browser-testing.umd.js',
    '@angular/platform-browser-dynamic/testing': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic-testing.umd.js',
    '@angular/http/testing': 'npm:@angular/http/bundles/http-testing.umd.js',
    '@angular/router/testing': 'npm:@angular/router/bundles/router-testing.umd.js',
    
    'rxjs': 'npm:rxjs',
    'typescript': 'npm:typescript@2.0.2/lib/typescript.js'
  },
  //packages defines our app package
  packages: {
    app: {
      main: './main.ts',
      defaultExtension: 'ts'
    },
    rxjs: {
      defaultExtension: 'js'
    }
  }
});
<!DOCTYPE html>
<html>

  <head>
    <base href="." />
    <title>angular2 playground</title>
    <link rel="stylesheet" href="style.css" />
    <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
    <script src="https://unpkg.com/zone.js/dist/zone.js"></script>
    <script src="https://unpkg.com/zone.js/dist/long-stack-trace-zone.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
    <script src="https://unpkg.com/systemjs@0.19.31/dist/system.js"></script>
    <script src="config.js"></script>
    <script>
    System.import('app')
      .catch(console.error.bind(console));
  </script>
  </head>

  <body>
    <my-app>
    loading...
  </my-app>
  </body>

</html>
### Angular Starter Plunker - Typescript
//our root app component
import { Component, NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { Router, Routes, RouterModule, ROUTER_DIRECTIVES } from '@angular/router'
import { GlobalPopupComponent } from './global-popup.component';

@Component({
    selector: 'my-app',
    template: `
    <div>
      <h2>router.isActive() & Secondary state test</h2>
      <p>
        <strong>Goal:</strong>To query if we are on a given page, including if a secondary outlet is open
        </p>
        <p><strong>The issue:</strong>isActive('route', true) returns false when a secondary route is open (2nd param = 'exact'). Having exact=false returns true for child states.</p>
      <h4>Modal control</h4>
      <button (click)="openModal()">Open modal</button>
      <button (click)="closeModal()">Close modal</button>
      <h4></h4>
      <a routerLink="/">home</a>
      <a routerLink="/second">second page</a>
      
      <ul>
        <li>is home active (not exact): {{ isHomeActive(false) }} </li>
        <li>is home active (exact): {{ isHomeActive(true) }} </li>
        <li>is second page active (not exact): {{ isFeatureActive(false) }} </li>
        <li>is second page active (exact): {{ isFeatureActive(true) }} </li>
        <li> url: {{ url }} </li>
      </ul>
      
      <hr>
      
      <router-outlet></router-outlet>
      <div style="background-color: #ccc;padding: 25px;">
        <router-outlet name="popup"></router-outlet>
      </div>
    </div>
  `,
})
export class App {
  constructor(
    private _router: Router) {
      
  } 
  
  public openModal() {
    this._router.navigate(['', { outlets: { popup: 'global-popup' } } ])
  }
    
  public closeModal() {
    this._router.navigate(['', { outlets: { popup: null } } ])
  }
  
  public isHomeActive(exact) {
    return this._router.isActive('/', exact);
  }
  
  public isFeatureActive(exact) {
    return this._router.isActive('/second', exact);
  }
  
  public get url() {
    return this._router.url;
  }
  
}

@Component({
    template: `<h1>Home</h1>
  <a routerLink="/feature">route to feature</a>
  <hr>`
})
export class HomeComponent {
  
}

@NgModule({
    imports: [
        BrowserModule,
        RouterModule.forRoot([
            {
                path: '',
                children: [
                    {
                        path: '',
                        // NOTE: swap loadChildren out for component and 
                        // refreshing the page at root with global secondary
                        // route no longer throws errors
                        // component: HomeComponent
                        loadChildren: './src/home/home.module#HomeModule'
                    },
                    {
                        path: 'second',
                        loadChildren: './src/feature/second.module#SecondModule'
                    }
                ]
            }, {
                path: 'global-popup',
                component: GlobalPopupComponent,
                outlet: 'popup'
            }
        ]),
    ],
    declarations: [
        App,
        HomeComponent,
        GlobalPopupComponent
    ],
    bootstrap: [App],
    directives: [ROUTER_DIRECTIVES]
})
export class AppModule {
}
import { Component } from '@angular/core'

@Component({
    selector: 'feature-comp',
    template: `
      <div style="background-color: lightblue">
        <h1>Second page</h1>
        <div>This is now the second page</div>
      </div>
        `
})
export class SecondComponent {}
import { NgModule } from '@angular/core'
import { RouterModule } from '@angular/router'
import { SecondComponent } from './second.component';
import { FeaturePopupComponent } from './feature-popup.component';

@NgModule({
    imports: [
        RouterModule.forChild([{
            path: '',
            component: SecondComponent
        }])
    ],
    exports: [RouterModule],
    declarations: [
        SecondComponent
    ]
})
export class SecondModule {}
import { Component } from '@angular/core'
import { Router, Routes, RouterModule, ROUTER_DIRECTIVES } from '@angular/router'

@Component({
    template: `<h1>global popup</h1>
  <button (click)="closeAndNav_doubleCallHack()">Nav away & close - double-call hack</button>
  <button (click)="closeAndNav_singleCall()">Nav away & close - broken single call</button>
  <br>
  <button (click)="closeModal()">Close modal</button>
  `
})
export class GlobalPopupComponent {
  
  constructor(
    private _router: Router
    ) {
      
    }
    
    public closeAndNav_singleCall() {
      return this._router.navigate(['/second', {outlets: { popup: null }}]);
    }
    
    public closeAndNav_doubleCallHack() {
      // try - clear outlet, then navigate
      // return this._router.navigate(['', {outlets: { popup: null }}]).then(() => { this._router.navigate(['second']); } );
      
      // try - navigate, then clear outlet
      return this._router.navigate(['second']).then(() => { this._router.navigate(['', {outlets: { popup: null }}]); })
    }
    
    public closeModal() {
      return this._router.navigate(['', { outlets: { popup: null } } );
    }
}
import { Component } from '@angular/core'

@Component({
    selector: 'home-comp',
    template: `<h1>Home page</h1>
      <div>This is just the home page</div>`
})
export class HomeComponent {}
import { NgModule } from '@angular/core'
import { RouterModule } from '@angular/router'
import { HomeComponent } from './home.component';
import { HomePopupComponent } from './home-popup.component';

@NgModule({
    imports: [
        RouterModule.forChild([{
            path: '',
            component: HomeComponent
        }])
    ],
    exports: [RouterModule],
    declarations: [
        HomeComponent
    ]
})
export class HomeModule {}
//main entry point
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {AppModule} from './app.module';

platformBrowserDynamic().bootstrapModule(AppModule)
/* Styles go here */