Prevent pinch-to-zoom on Win8/Chrome tablet

preventPinchToZoom.js

(function () {

    'use strict';

    function preventPinchToZoom(event) {
        if (event.touches.length >= 2) {
            event.stopPropagation();
            event.preventDefault();
        }
    }

    document.addEventListener('touchmove', preventPinchToZoom, false);

}());

Useful when prototyping a non-web interface using web technologies.

I'm sure there's a better way to do this - feedback and pull requests welcome!

Does it need to be JS? I think adding user-scalable=no to the viewport meta tag would solve this, too, right? (dunno about Win8)

e.g.

<meta name="viewport" content="initial-scale=1.0,user-scalable=no,maximum-scale=1" />