Php-graph-sdk: Cross-site request forgery validation failed. Required param "state" missing from persistent data

[corvus87]

When trying to execute - $helper->getAccessToken() - gives an error - 'Cross-site request forgery validation failed. Required param "state" missing from persistent data'

Used symfony 3.3 and facebook/graph-sdk 5.4

All domains added
'FBRLH_state' exists
Session started

// Create url

$facebookCallbackUrl = 'https://' . $base . '/' . $_locale . '/fb-callback';
$loginfb = $this->get('app.lmfacebook')->getSigninURL($this->getParameter('fbappid'), $this->getParameter('fbsecretkey'), $facebookCallbackUrl);
<?php

namespace AppBundle\Services\Ukraine;

use Facebook\Facebook;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class LMFacebook extends Controller
{
    public static function getSigninURL($fbId, $fbSecret, $callback)
    {
        $fb = new Facebook([
            'app_id' => $fbId,
            'app_secret' => $fbSecret,
            'default_graph_version' => 'v2.9',
            'persistent_data_handler' => 'session'
        ]);

        $permissions = ['email'];

        return $fb->getRedirectLoginHelper()->getLoginUrl($callback, $permissions);
    }
}

---

$facebookCallbackUrl = 'https://' . $base . '/' . $_locale . '/fb-callback';
$loginfb = $this->get('app.lmfacebook')->getSigninURL($this->getParameter('fbappid'), $this->getParameter('fbsecretkey'), $facebookCallbackUrl);
)

---

// Facebook callback

   /**
    * @Route("/{_locale}/fb-callback", name="fb-callback", defaults={"_locale": "ua"}, requirements={"_locale" : "ua|en|ru"})
    * @param Request $request
    * @param $_locale
    * @return mixed
    */
        public function fbCallbackAction(Request $request, $_locale)
        {
        $session = $request->getSession();
        $fb = new Facebook([
            'app_id' => ********,
            'app_secret' => *******,
            'default_graph_version' => 'v2.9',
            'persistent_data_handler' => 'session'
        ]);

        $helper = $fb->getRedirectLoginHelper();

        try {
            $accessToken = $helper->getAccessToken(); // Error
        } catch (\Exception $exception) {
            $this->logToFile('Facebook returned an error: ' . $exception->getMessage());
            exit;
        }

[abhij89]

Please make sure the state param value in login link is refreshing each time you're re-attempting to login.

[mcanepa]

same problem here

@abhij89 state value is in fact changing each time

[azarual]

Hello there i have the same problem did anyone got a solution please

[arturosinski]

What Helps me, was add session_start(); at the begining of file.
I have it in login.php but i dont have it in my callback.php file.
When i add it, the problem was solved.
I hope that can help YoU.

[tiramdasg]

still didn't work

[GALUSARO91]

same problem here

@abhij89 state value is in fact changing each time

Interesting, 'cause I have the same trouble, but for me it only works once and then throws the error message, so I'll try and let you know the outcome.

[humfer8]

hi, could anyone solve this problem? I do not know what to do