Angular - Dynamic Component - Compiler Issue - The creator component is not getting destroyed - Memory leak?

<!DOCTYPE html>
<html>

  <head>
    <base href="." />
    <script type="text/javascript" charset="utf-8">
      window.AngularVersionForThisPlunker = 'latest'
    </script>
    <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 */

li .glyphicon {
    margin-right: 10px;
}

/* Highlighting rules for nav menu items */
li.link-active a,
li.link-active a:hover,
li.link-active a:focus {
    background-color: #4189C7;
    color: white;
}

/* Keep the nav menu independent of scrolling and on top of other items */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1;
}

@media (min-width: 768px) {
    /* On small screens, convert the nav menu to a vertical sidebar */
    .main-nav {
        height: 100%;
        width: calc(25% - 20px);
    }
    .navbar {
        border-radius: 0px;
        border-width: 0px;
        height: 100%;
    }
    .navbar-header {
        float: none;
    }
    .navbar-collapse {
        border-top: 1px solid #444;
        padding: 0px;
    }
    .navbar ul {
        float: none;
    }
    .navbar li {
        float: none;
        font-size: 15px;
        margin: 6px;
    }
    .navbar li a {
        padding: 10px 16px;
        border-radius: 4px;
    }
    .navbar a {
        /* If a menu item's text is too long, truncate it */
        width: 100%;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
}
.body-content {
        padding-top: 50px;
    }

### Angular Starter Plunker - Typescript

var angularVersion;
if(window.AngularVersionForThisPlunker === 'latest'){
  angularVersion = ''; //picks up latest
}
else {
  angularVersion = '@' + window.AngularVersionForThisPlunker;
}

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'+ angularVersion + '/bundles/core.umd.js',
    '@angular/common': 'npm:@angular/common' + angularVersion + '/bundles/common.umd.js',
    '@angular/common/http': 'npm:@angular/common' + angularVersion + '/bundles/common-http.umd.js',
    '@angular/compiler': 'npm:@angular/compiler' + angularVersion  + '/bundles/compiler.umd.js',
    '@angular/platform-browser': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser.umd.js',
    '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic' + angularVersion + '/bundles/platform-browser-dynamic.umd.js',
    '@angular/http': 'npm:@angular/http' + angularVersion + '/bundles/http.umd.js',
    '@angular/router': 'npm:@angular/router' + angularVersion +'/bundles/router.umd.js',
    '@angular/forms': 'npm:@angular/forms' + angularVersion + '/bundles/forms.umd.js',
    '@angular/animations': 'npm:@angular/animations' + angularVersion + '/bundles/animations.umd.js',
    '@angular/platform-browser/animations': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser-animations.umd.js',
    '@angular/animations/browser': 'npm:@angular/animations' + angularVersion + '/bundles/animations-browser.umd.js',
    
    '@angular/core/testing': 'npm:@angular/core' + angularVersion + '/bundles/core-testing.umd.js',
    '@angular/common/testing': 'npm:@angular/common' + angularVersion + '/bundles/common-testing.umd.js',
    '@angular/common/http/testing': 'npm:@angular/common' + angularVersion + '/bundles/common-http-testing.umd.js',
    '@angular/compiler/testing': 'npm:@angular/compiler' + angularVersion + '/bundles/compiler-testing.umd.js',
    '@angular/platform-browser/testing': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser-testing.umd.js',
    '@angular/platform-browser-dynamic/testing': 'npm:@angular/platform-browser-dynamic' + angularVersion + '/bundles/platform-browser-dynamic-testing.umd.js',
    '@angular/http/testing': 'npm:@angular/http' + angularVersion + '/bundles/http-testing.umd.js',
    '@angular/router/testing': 'npm:@angular/router' + angularVersion + '/bundles/router-testing.umd.js',
    'tslib': 'npm:tslib@1.6.1',
    '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'
    }
  }
});

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

platformBrowserDynamic().bootstrapModule(AppModule)

//our root app component
import {Component, NgModule, VERSION} from '@angular/core'
import {BrowserModule} from '@angular/platform-browser'
import { RouterModule } from '@angular/router';

import { HomeComponent } from './home'
import { MyCreatorComponent } from './mydynamic'

@Component({
  selector: 'my-app',
  template: `
    <div class='container-fluid'>
      <div class='row'>
          <div class='col-sm-12'>
              <div class='main-nav'>
                  <ul>
                      <li [routerLinkActive]="['link-active']">
                          <a [routerLink]="['/home']">
                              <span></span> Home
                          </a>
                      </li>
                      <li [routerLinkActive]="['link-active']">
                          <a [routerLink]="['myCreator', 1]">
                              <span></span> Dynamic Page
                          </a>
                      </li>
                  </ul>
            </div>
          </div>
      </div>
      <div class='row'>
        <div class='col-sm-12 body-content'>
              <router-outlet></router-outlet>
          </div>
      </div>
  </div>
  `,
})
export class App {
  constructor() {
  }
}

@NgModule({
  imports: [ BrowserModule,
  RouterModule.forRoot([
            { path: '', redirectTo: 'home', pathMatch: 'full' },
            { path: 'home', component: HomeComponent },
            { path: 'myCreator/:id', component: MyCreatorComponent },
            { path: '**', redirectTo: 'home' }
        ])],
  declarations: [ App, HomeComponent, MyCreatorComponent ],
  bootstrap: [ App ]
})
export class AppModule {}

import { Component } from '@angular/core';
@Component({
    selector: 'home',
    template: `
      <h1>Welcome to Home page</h1>
    `
})
export class HomeComponent {
}

import { Component, NgModule, Compiler, ViewContainerRef, ReflectiveInjector,
    NgModuleFactor, ComponentRef, ComponentFactoryResolver, OnInit } from '@angular/core';
import { FormGroup, FormBuilder, ReactiveFormsModule, Validators, ValidatorFn } from '@angular/forms';
import { CommonModule } from '@angular/common';

@Component({
    selector: 'myCreator',
    template: `
      <h1>I am the Parent</h1>
    `
})
export class MyCreatorComponent implements OnInit, OnDestroy {
   cmpRef: ComponentRef<any>|null;
    content: string = "";
    constructor(
        private vcRef: ViewContainerRef ,
        private compiler: Compiler,
        private resolver: ComponentFactoryResolver
    ){}
    ngOnInit() {
      this.content = `
        <div>
          <h4>I am a dynamic child...</h4>
        </div>
      `;
      this.createDynamicComponent(this.content);
    }
    ngOnDestroy() {
        if (this.cmpRef) {
            this.cmpRef.destroy();
        }
        this.cmpRef = null;
        this.vcRef.clear();
    }
    
    createDynamicComponent(content:string){
      
      //Dynamic Component
      @Component({
        selector : 'dynamic-html',
        template: content
      })
      class DynamicHtmlComponent{}
      
      //Dynamic Module
      @NgModule({
        imports: [CommonModule],
        declarations: [DynamicHtmlComponent],
        entryComponents: [DynamicHtmlComponent]
      })
      class DynamicModule{}

      //Compilation
      this.compiler.compileModuleAsync(DynamicModule)
        .then((ngMdlFac) => {
          let injector = ReflectiveInjector.fromResolvedProviders([], this.vcRef.parentInjector);
          let ngMdlRef = ngMdlFac.create(injector);
          let cmpFactory = ngMdlRef.componentFactoryResolver.resolveComponentFactory(DynamicHtmlComponent);
          this.cmpRef = this.vcRef.createComponent(cmpFactory);
        });
    }
}