Not showing inside console window and network tab - html

Question

The second part is the html code and the first part is the angularjs part .
customer.controller("new_info",
function($scope, $routeParams,$http)
{
$scope.customer = {};
$scope.register = function () {
$http.post('localhost:4000/new_info', $scope.customer).then(
function (response) {
console.log("posted successfully"); //not showing anything in the console window
}
);
}
});
<div class="col-md-6">
<div class="panel-body">
<form name="AddCustomer" >
<div class="form-group">
<label>Id</label>
<input type="text" class="form-control" ng-model="customer.id" />
</div>
<div class="form-group">
<label>Name</label>
<input type="text" class="form-control" ng-model="customer.name" />
</div>
<div class="form-group">
<label>City</label>
<input type="text" class="form-control" ng-model="customer.city" />
</div>
<button class="btn btn-default" ng-click="register()">Submit</button>
</form>
</div>
</div>
//after clicking the button its not showing anything .