Demo of secondary tabs not showing selection.

<!DOCTYPE html>
<html>
  <head>
    <title>Angular Material Plunker</title>
    
    <!-- Load common libraries -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/typescript/2.1.6/typescript.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/core.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/zone.js/0.7.2/zone.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.47/system.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/hammer.js/2.0.8/hammer.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/web-animations/2.2.2/web-animations.min.js"></script>


    <!-- Configure SystemJS -->
    <script src="systemjs.config.js"></script>

    <script>
      System
        .import('main.ts')
        .catch(console.error.bind(console));
    </script>
    
    <!-- Load the Angular Material stylesheet -->
    <link href="https://rawgit.com/angular/material2-builds/master/prebuilt-themes/indigo-pink.css" rel="stylesheet">
    <style>body { font-family: Roboto, Arial, sans-serif; margin: 0 }</style>

  </head>

  <body class="mat-app-background">
    <material-app>Loading the Angular Material App...</material-app>
  </body>

</html>

<!--
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
-->

import {Component} from '@angular/core';
import {bootstrap} from '@angular/platform-browser-dynamic';

@Component({
  selector: 'material-app',
  template: `
  <p>An md-tab-group inside an md-tab-group doesn't display the tab as being selected if not initially visible.</p>
  <p>Below the main index is set to 0 and subIndex to 1. Switching to Main tab two doesn't show Sub Two as selected (although its contents are shown).</p>
	<md-tab-group [selectedIndex]="mainIndex">
		<md-tab label="Main tab one">
		Main tab one contents
		</md-tab>

		<md-tab label="Main tab two">
				<md-tab-group [selectedIndex]="subIndex">
					<md-tab label="Sub One">
					  Sub one contents
					</md-tab>
					<md-tab label="Sub Two">
  					  Sub two contents
					</md-tab>
  		</md-tab-group>
		</md-tab>
	</md-tab-group>
` 
})
export class AppComponent {
  private mainIndex: number;
  private subIndex: number;
  
  
  constructor() {
    this.mainIndex = 0;
    this.subIndex = 1;
  }
}

<md-toolbar color="primary">
  Angular Material 2 App
</md-toolbar>

<div style="padding: 7px">
  
  <p>
    <button md-button>Basic Button</button>

    <md-slide-toggle>Slide Toggle</md-slide-toggle>
  </p>
  

</div>

<!--
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
-->

/** Add Transpiler for Typescript */
System.config({
  transpiler: 'typescript',
  typescriptOptions: {
    emitDecoratorMetadata: true
  },
  packages: {
    '.': {
      defaultExtension: 'ts'
    },
    'vendor': {
      defaultExtension: 'js'
    }
  }
});

System.config({
  map: {
    'main': 'main.js',
    
    // Angular specific mappings.
    '@angular/core': 'https://unpkg.com/@angular/core/bundles/core.umd.js',
    '@angular/common': 'https://unpkg.com/@angular/common/bundles/common.umd.js',
    '@angular/compiler': 'https://unpkg.com/@angular/compiler/bundles/compiler.umd.js',
    '@angular/animations': "https://unpkg.com/@angular/animations/bundles/animations.umd.js",
    '@angular/animations/browser': 'https://unpkg.com/@angular/animations/bundles/animations-browser.umd.js',
    '@angular/http': 'https://unpkg.com/@angular/http/bundles/http.umd.js',
    '@angular/forms': 'https://unpkg.com/@angular/forms/bundles/forms.umd.js',
    '@angular/router': 'https://unpkg.com/@angular/router/bundles/router.umd.js',
    '@angular/platform-browser': 'https://unpkg.com/@angular/platform-browser/bundles/platform-browser.umd.js',
      '@angular/platform-browser/animations': 'https://unpkg.com/@angular/platform-browser/bundles/platform-browser-animations.umd.js',
    '@angular/platform-browser-dynamic': 'https://unpkg.com/@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
    '@angular/material': 'https://rawgit.com/angular/material2-builds/master/bundles/material.umd.js',
    '@angular/cdk': 'https://rawgit.com/angular/cdk-builds/master/bundles/cdk.umd.js',

    
    // Third party libraries
    'tslib': 'https://unpkg.com/tslib@1.7.1',
    'rxjs': 'https://unpkg.com/rxjs',
  },
  packages: {
    // Thirdparty barrels.
    'rxjs': { main: 'index' },
  }
});

/*
 Copyright 2016 Google Inc. All Rights Reserved.
 Use of this source code is governed by an MIT-style license that
 can be found in the LICENSE file at http://angular.io/license
 */

import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {BrowserModule} from '@angular/platform-browser';
import {BrowserAnimationsModule} from '@angular/platform-browser/animations';
import {NgModule} from '@angular/core';
import {CommonModule} from '@angular/common';
import {AppComponent} from './app.component';
import {CdkTableModule} from '@angular/cdk'
import {
  MdTabsModule,
} from '@angular/material';

/**
 * NgModule that includes all Material modules that are required to serve 
 * the Plunker.
 */
@NgModule({
  exports: [
    // CDk
    CdkTableModule,
    
    // Material
    MdTabsModule,
  ]
})
export class PlunkerMaterialModule {}

@NgModule({

  imports: [
    BrowserModule,
    CommonModule,
    PlunkerMaterialModule,
    BrowserAnimationsModule
  ],

  declarations: [AppComponent],
  bootstrap: [AppComponent],
  providers: []
})
export class PlunkerAppModule {}

platformBrowserDynamic().bootstrapModule(PlunkerAppModule);

/*
 Copyright 2016 Google Inc. All Rights Reserved.
 Use of this source code is governed by an MIT-style license that
 can be found in the LICENSE file at http://angular.io/license
 */