How do I call an asynchronous process from an asp.net hosted module using C#5 async / await?

I have a long running process that is called via a Nancy Module Get method. Rather than have the browser hang while the process runs I would like this call to be asynchronous, in other words I want the Get method to return right away and leave the long running process to do its thing. I could then check the status of the process at regular intervals and act accordingly.

Browser scrolls to the bottom of the page automatically on load in Localhost

This is the most strange problem I’ve ever seen.
I’m using Visual Studio Enterprise 2015 Version 14.0.25425.01 Update 3 and developing .NET web applications.
Today when I lunched one of web applications, after page loads completely, suddenly it scrolled down to the bottom.
First I thought it may be a javascript function or something, but it wasn’t.
It works without problem on hosted server but in local host this problem exists.