Angular: Empty Fiddle

http://angularjs.org/

HTML

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.1.5/angular.min.js"></script>
<div ng-controller="Ctrl">
  {{data}}
</div>

JavaScript

var myApp = angular.module('myApp', []);

var data = {hello:"World!"};

function Ctrl($scope, $http) {
    $http.post('/echo/json/', 'json=' + encodeURIComponent(angular.toJson(data)), {
        headers: {
            'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
        }
    }).always(function(data) {
         alert("HI");  
    });
}