This is not so much of a specific question, but more a general one. I'm redoing one of my old projects and to make it more user friendly I want the following:
The project will be running on my home server, with a flask/python backend. User using my website will be coming from my companies intranet. Would it be possible to load an intranet page in a iframe on my website. 
So in short, is it possible to load an intranet page from an internet-page that has no access to said intranet.
Of course you can load it in an iframe, you don't need access to the page from the internet for that - the client needs it. Yet, the intranet application might request not to be viewed in a frame.
Internet app calls intranet page