title: Angular form doesn't submit
body: <p>I have this angular script</p>
  
  <pre><code>var app = angular.module('j_app', ['ngMaterial'], function($interpolateProvider)    {
      $interpolateProvider.startSymbol('&lt;%');
      $interpolateProvider.endSymbol('%&gt;');
  });
  
  app.controller('j_controller', function($scope, $http) {
    $scope.formdata = {};
  
    $scope.formsubmit = function(){
      $http({
         method : 'POST',
         url : '/dodong',
         data : $.param($scope.formdata),
         headers : {'Content-Type' : 'application/x-www-form-urlencoded'}
      }).success(function(data){
         console.log(data); 
      });
    };
  });
  </code></pre>
  
  <p>and this angular form</p>
  
  <pre><code>&lt;body ng-app="j_app"&gt;
  &lt;div ng-controller="j_controller"&gt;
  &lt;form ng-submit="formsubmit()"&gt;
      &lt;fieldset&gt;
          &lt;input type="text" name="username" ng-model="formdata.username" placeholder="Your username here..." /&gt;
          &lt;input type="password" name="password" ng-model="formdata.password" placeholder="Your password here..." /&gt;
      &lt;/fieldset&gt;
      &lt;button&gt;Submit test angular&lt;/button&gt;
  &lt;/form&gt;
  &lt;/div&gt;
  &lt;/body&gt;
  </code></pre>
  
  <p>but the form did not submit like nothing happen yet no errors thrown. Any ideas?</p>