Iframe not working tried difrrent things

the code i tried diffrentt things…

<ion-card *ngFor="let link of links">      
      	 <iframe [src]="{{link}}" width="100%" height="450px" frameborder="0" allowfullscreen></iframe> 			             
</ion-card>

<ion-card *ngFor="let link of links">      
          	 <iframe src="{{ link }}" width="100%" height="450px" frameborder="0" allowfullscreen></iframe> 			             
    </ion-card>

<ion-card *ngFor="let link of links">      
          	 <iframe src="[link]" width="100%" height="450px" frameborder="0" allowfullscreen></iframe> 			             
    </ion-card>

the last one with src="[link]" gives the following

other gave me the following

in the devloper console i printed the contents of links
console.log(“links”,this.links);