Surface Pro HTML5 launch camera from browser

I'm using HTML5 input with type=file in a mobile web app.  iOS and Android prompt the user to Take a Photo.  How do I get that to work on Surface Pro? Right now it only gives the user the option to select a file. My users want to be able to take a photo from within the web app without have to leave the browser to open the camera. 

You can try it the Capture Image on the test page here

http://mobilehtml5.org/ts/?id=23

Thanks,

Donnie