Angular + ngx-datatable cellTemplate not loading

<!DOCTYPE html>
<html>

  <head>
    <base href="." />
    <title>angular 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>

/* Styles go here */

### Angular Starter Plunker - Typescript

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/animations': 'npm:@angular/animations/bundles/animations.umd.js',
    '@angular/platform-browser/animations': 'npm:@angular/platform-browser/bundles/platform-browser-animations.umd.js',
    '@angular/animations/browser': 'npm:@angular/animations/bundles/animations-browser.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',
    '@swimlane/ngx-datatable': 'npm:@swimlane/ngx-datatable/release',
    'rxjs': 'npm:rxjs',
    'typescript': 'npm:typescript@2.2.1/lib/typescript.js'
  },
  //packages defines our app package
  packages: {
    app: {
      main: './main.ts',
      defaultExtension: 'ts'
    },
    rxjs: {
      defaultExtension: 'js'
    },
   '@swimlane/ngx-datatable': {
      main: 'index.js',
      defaultJSExtensions: 'js'
    }
  }
});

//main entry point
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {AppModule} from './app';

platformBrowserDynamic().bootstrapModule(AppModule)

//our root app component
import {Component, ViewChild, TemplateRef, NgModule } from '@angular/core'
import {BrowserModule} from '@angular/platform-browser'

import { NgxDatatableModule } from '@swimlane/ngx-datatable';

@Component({
  selector: 'my-app',
  template: `
    <ngx-datatable
      [rows]="rows"
      [columns]="columns">
    </ngx-datatable>
    
    <ng-template #roleTemplate let-row="row" let-value="value" let-i="index">
      <strong> **{{ value }}** </strong>
    </ng-template>
  `,
})
export class App {
  @ViewChild('roleTemplate') roleTemplate: TemplateRef<any>;

  rows = [
    { displayName: 'Austin', emailAddress: 'a@a.aa', role: 'Swimlane' },
    { displayName: 'Dany', emailAddress: 'b@b.bb', role: 'KFC' },
    { displayName: 'Molly', emailAddress: 'c@c.cc', role: 'Burger King' },
  ];

  columns: any[];

  ngOnInit() {
    this.columns = [
      { name: 'Name', prop: 'displayName' },
      { name: 'Email', prop: 'emailAddress' },
      { name: 'Role', prop: 'role', cellTemplate: this.roleTemplate },
    ];
  }
}

@NgModule({
  imports: [ BrowserModule, NgxDatatableModule ],
  declarations: [ App ],
  bootstrap: [ App ]
})
export class AppModule {}