I seem unable to use a controller to set the CSS background property of a div. Here is my code so far, as per the documentation:
HTML:
<div class="hero" ng-controller="HeroCtrl" ng-style="heroImage"></div>
JS:
'use strict';
angular.module('AppliedSiteApp').controller('HeroCtrl', function ($scope) {
    $scope.heroImage = {
        background: 'images/brick.jpg'
    };
    console.log($scope.heroImage);
});
CSS:
.hero {
    width: 100%;
    min-height: 350px;
    background-position: center center;
}
I have also tried to replicate this setup in a Fiddle here. Does anyone have any ideas?
 
     
     
    