[AngularJS] Getting a 404 null error with Angular 7 [src] attribute

[rj]

I am trying to load an image using [src] attribute in Angular application. 
The image content renders fine outside when i load it up directly. However, 
with the app it gives me 404 null error.

HTML - 
<span class="pull-right">
            <img
              [src]="sampleImage"
              alt="{{ user.firebaseuser.displayName }}"
              class="img-responsive"
              style="max-height: 50px;">
</span>

Component class -
export class UserItemComponent implements OnInit {
      @Input() user: any;
      // @Input() index: number;
    
      sampleImage = 
'https://americana-group.com/app/uploads/2017/11/koki1920x960-1048x524.jpg';
      constructor() { }
    
      ngOnInit() {
      }
    }

Error Details -   
http://localhost:4200/null 404 (Not Found)


What am i missing here?

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