Hi Akash Babu Tammali,
By using the HTMLSnippet widget, you can add the iFrame tag to call other sites from our application.
Use this code inside HTMLSnippet Content area and call your site address in src attribute tag :
<iframe id="frame" width="100%" height = "100%" src="https://getbootstrap.com/" frameborder="0" scrolling="auto">
First, you need to add some class name to the HTML snippet widget apperance section. For example, I have added (test) class name to my HTMLSnippet widget.
$( ".test div:first-child" ).css( "height", "2000px" );
You can set height as per your need. I hope, it will be helpful for you.
For your reference, I have tried the same in the sample application. It works. I hope, it will work for you! :
Thanks and regards,