Symfony 4 : Request object change - symfony

Question

i'm working on Symfony 4.
I have a service:
App\EventListener\EbayExceptionListener:
tags:
- { name: kernel.event_listener, event: kernel.controller }
arguments: [ "#doctrine.orm.entity_manager" , "#router" , "#session" ]
And here is my listener :
<?php
namespace App\EventListener;
use App\Entity\Ebay;
use Doctrine\ORM\EntityManager;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Session\Session;
use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
use Symfony\Component\Routing\Router;
class EbayExceptionListener
{
private $repository;
private $router;
private $session;
private $redirectName = 'home';
public function __construct(EntityManager $entityManager, Router $router, Session $session)
{
$this->repository = $entityManager->getRepository(Ebay::class);
$this->router = $router;
$this->session = $session;
}
//Check if an eBay entity exist in the database, if not redirect to the form to create the eBay entity
public function onKernelController(FilterControllerEvent $event)
{
$ebay = $this->repository->findOneBy(['name' => 'Ebay']);
$request = $event->getRequest();
$routeName = $request->get('_route');
dump($routeName);
if ($routeName != "home" AND $ebay == null) {
$this->session->getFlashBag()->add('error', 'Please provide information for Ebay form');
return new RedirectResponse($this->router->generate($this->redirectName));
}
}
}
My Controller:
<?php
namespace App\Controller;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
class HomeController extends Controller
{
/**
* #Route("/", name="home")
*/
public function index()
{
return $this->render('home/index.html.twig', [
'controller_name' => 'HomeController',
]);
}
}
I have a problem with the var $routeName inside my Listener, in fact the value of this variable should be the name of the current route. But when I use the dump($routeName)
I have 2 results : "_wdt" and "home"
I don't know why the $request parameters are not the same when my listener is executed and after the page has been generated.
Because I have no page call "_wdt" it supposed to be "home".
Did I do something wrong ?
Thank you for your help.