angular POST request not working but GET working fine - angularjs

Question

I know this has been asked, but I tried a lot of things and could not make this work.
I am making GET and POST request from my angular application to laravel backend api's. I am able to fetch json from get request but my POST request fails for json data type. It works for
x-www-form-urlencoded
but I am unable to extract data as it is in json format.
$http.get('http://api.app.mywebsite.com/users').success(function(data){
$scope.user = data;
});
$scope.addUser = function(user){
console.log($scope.user);
$http({
method: 'POST',
url: 'http://api.app.mywebsite.com/users',
dataType: 'json',
data: $scope.user,
headers: {'Content-Type': 'application/json; charset=utf-8' }
}).then(function(result){
console.log(result);
}, function(error){
console.log(error);
})
}
$scope.user is posted on form submit.
The error I get :-
XMLHttpRequest cannot load http://api.app.mywebsite.com/users.
Response to preflight request doesn't pass access control check:
No 'Access-Control- Allow-Origin' header is present on the
requested resource. Origin 'http://app.mybackend.com' is therefore not allowed access.
My CORS.php middleware in laravel :-
public function handle($request, Closure $next)
{
header("Access-Control-Allow-Origin: *");
// ALLOW OPTIONS METHOD
$headers = [
'Access-Control-Allow-Methods'=> 'POST, GET, OPTIONS, PUT, DELETE',
'Access-Control-Allow-Headers'=> 'Content-Type, X-Auth-Token, Origin, X-Requested-With, Accept'
];
if($request->getMethod() == "OPTIONS") {
// The client-side application can set only headers allowed in Access-Control-Allow-Headers
return \Response::make('OK', 200, $headers);
}
$response = $next($request);
foreach($headers as $key => $value)
$response->header($key, $value);
return $response;
return $next($request);
}
routes.php
Route::group(['middleware' => 'cors'], function()
{
Route::resource('users', 'UserController');
});

Answer 1

Update:
http://let-aurn.github.io/laravel-5-cors/
You need to configure your http server to allow cors
Similar question:
How to enable CORS in AngularJs
And:
AngularJS performs an OPTIONS HTTP request for a cross-origin resource