Video not playing in ionic 3

Ionic Framework ionic-v3
1

hi…
i have an app in that videos are coming dynamically for now im using static url…videos are not playing nor any error …
can someone plz help me out…
my config.xml

<?xml version='1.0' encoding='utf-8'?> Lippincott Gurukul An awesome Ionic/Cordova app. Ionic Framework Team

my html page
<ion-list *ngSwitchCase="‘video’">
<iframe width=“100%” height=“200px” [src]=“sanitize(vid)” autoplay frameborder=“0” allowfullscreen android:screenOrientation=“landscape”>

    </ion-list>

and ts page
vid =‘http://www.sample-videos.com/video/mp4/720/big_buck_bunny_720p_30mb.mp4’;
sanitize(vid) {
return this.dom.bypassSecurityTrustResourceUrl(vid);
}