Silex default_target_path not working after successful login - forms

Question

I've got a problem ith redirect after successful login.
App.php file (part of it):
<?php
use Silex\Application;
/** ... */
use Symfony\Component\Security\Core\Encoder\PlaintextPasswordEncoder;
$app = new Application();
/** ... */
$app['security.encoder.digest'] = $app->share(function ($app) {
return new PlaintextPasswordEncoder();
});
$app['security.firewalls'] = array(
'secured' => array(
'pattern' => '^/admin/',
'form' => array(
'login_path' => '/login',
'check_path' => '/admin/login_check',
'default_target_path' => '/admin/news',
'always_use_default_target_path' => true,
),
'logout' => array(
'logout_path' => '/admin/logout',
),
'users' => array(
'admin' => array('ROLE_ADMIN', 'test'),
),
),
);
My controllers.php file:
<?php
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
$app->get('/login', function(Request $request) use ($app) {
return $app['twig']->render('login.html.twig', array(
'error' => $app['security.last_error']($request),
'last_username' => $app['session']->get('_security.last_username'),
));
});
$app->get('/admin/news', function(Request $request) use ($app) {
if ($app['security.authorization_checker']->isGranted('ROLE_ADMIN')) {
echo 'admin';
}
});
I am logged in (after passing correct login data in form), I have access to /admin/news route, but I have to go to that address manually. I'd like to be redirected there automatically after successful login. Now I'm kept in /login page. When I change default_target_path to 'http://google.com', it works properly.
I use homestead (vagrant) with nginx. Silex 1.3.0.
I'll appreciate any help.

Answer 1

The solution (or rather workaround) which worked was:
change 'default_target_path' to '/admin';
add new route:
$app->get('/admin', function() use ($app) {
return $app['twig']->render('admin/loggedIn.html.twig');
});
in admin/loggedIn.html.twig template I've added js redirect to admin/news
I don't have any idea why wasn't it working. If anyone knows - please leave a comment.