iframe inside angular2 component, Property 'contentWindow' does not exist on type 'HTMLElement'

Question

I have an iframe inside a angular2 component, and I am trying to change the content of the iframe by accessing the contentWindow.
The iframe should contain a simple butt

Answer 1

I solved the problem in the following way:

const element: HTMLIFrameElement = document.getElementById('iframe') as HTMLIFrameElement;
const iframe = element.contentWindow;
if (iframe !== null) {
  ...
}