Windows Phone 8 not displaying image via ng-class

Hi

In my windows phone 8 app I have an image tag with an src which correctly renders the image

For example src=“img/myimage.jpg”

However it does not work when I set the image through the ng-class directive using css?

For example ng-class=“myClass”
.myClass{
content: url(‘img/myimage.jpg’);
}

So using ng-class no image is displayed. Please note that this does however work for an android device.

Thanks