Background Image from Remote URL

Is there anyway we can set background image url for a content page in Xamarin.Forms from a remote URL?

If I use BackgroundImage="imagename.png" it works as long as the image is in resources for the app projects but if I try to set a image url like BackgroundImage="http://xamarin.com/content/images/pages/index/hero.jpg" I get an exception.

Thanks
Venkata