title: drag and drop not working on chrome - angular 7
body: <p>I am having a problem with angular drag events , 
  events dragstart , dragover , dragend.
  Problem is when I use dragover on chrome is not working , is not calling on chrome  but in safari works well .
  I am using angular 7</p>
  
  <pre><code>&lt;div class="image"  draggable="true" *ngFor="let image of previewImages;let i = index"&gt;
  &lt;img *ngIf="image"
  (dragstart)="dragStart( image , i )"
  (dragover)="dragOver(i)"
  (dragend)="dragEnd($event)"
  (mouseover)=mouseOver($event)
  [src]="image" alt=""&gt;
  &lt;a class="removeImage" (click)="removeImage(i)"&gt;X&lt;/a&gt;
  </code></pre>
  
  <p></p>
  
  <p>There's no error.</p>