How to load a 'POST' type page into an iframe in Ember?

I have an old JSP page in my project. I need to include this page into my new page, where my new UI side is complete EmberJS.

Things that I have tried

1. I got the rendered HTML from JSP using an ajax call and try to render with } handlebar, But there are lots of scripts inside the page. They are not getting parsed or executed.

How can I load the page into an iframe? The page is POST type.