Error: Video not autoplay when app loads for the first time in angular6

I am trying to autoplay the video when the app first load. But video is not autoplaying when app first open on browser.

Here, I got a link but no solution was there and still unanswered- Video is not playing in angular 4 but refresh page is working

The video is sometimes loaded/ sometimes not (when checked in Chrome Dev Tool). However, video is not playing in either case for the first time.

Here is the video link: https://stackblitz.com/edit/angular-nezdkr?file=src/app/app.component.html

It does not autoplaying when app first loading in chrome but autoplaying in Mozilla firefox.

Note: I don't want to show controls.

app.component.html

<router-outlet></router-outlet>

app.routing.ts

 {
        path: '',
        redirectTo: 'videoCOmp',
        pathMatch: 'full'
    },
    {
        path: 'videoCOmp',
        component: videoCOmpComponent,
        pathMatch: 'full'
    }

When app first loads on browser and it route to videoCOmpComponent, video is not autoplaying. However, when browser is reloaded/ refreshed, the video starts playing.

videoCOmpComponent.ts

    abc0 = true;
    def0 = true;

    abc1 = false;
    def1 = false;

videoPlay: HTMLElementVideoElement;

ngOniInit(){
// I am trying to solve this issue but getting no success:-

 if(this.abc0 && this.def0 ){
  this.videoPlay =  document.querySelector('videoContainer');
 this.videoPlay.play();
  }
}

videoCOmpComponent.html

<div id="video-container" class="video-container" *ngIf="abc0 && def0">
<video id="videoContainer" muted autoplay>
 <source src="../../../../assets/videos/meeting1.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
</div>
<div *ngIf="abc1 && def1" class="video-container">
<video  muted autoplay="autoplay">
<source src="../../../../assets/videos/meeting2.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
</div>