CorsListener.php

<?php
namespace Elnur\Listener;

use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
use JMS\DiExtraBundle\Annotation\Service;
use JMS\DiExtraBundle\Annotation\Observe;

/**
 * @Service
 */
class CorsListener
{
    /**
     * @Observe("kernel.response")
     */
    public function onResponse(FilterResponseEvent $event)
    {
        $event->getResponse()->headers->add([
            'Access-Control-Allow-Origin'  => '*',
            'Access-Control-Allow-Methods' => '*',
            'Access-Control-Allow-Headers' => 'Authorization, X-Requested-With',
        ]);
    }
}