Token parameter not set in request

[MasterPuffin]

In PayumBundle/Security/HttpRequestVerifier.php:39

if (! $hash = $httpRequest->attributes->get('payum_token', $httpRequest->get('payum_token', false))) {
            throw new NotFoundHttpException('Token parameter not set in request');
       }

This line checks if the payum_token parameter is valid. However Stripe doesn't append this parameter to the url nor to the attributes. It is only set if you access

$content = $request->getContent();
$data = json_decode($content, true);
$data['data']['object']['metadata']['token_hash']

one workaround would be to write the token_hash to the url with

$request->attributes->set('payum_token', $tokenHash);
$request->request->set('payum_token', $tokenHash);

however this will fail the following check

if (! RequestTokenVerifier::isValid($httpRequest->getUri(), $token->getTargetUrl())) {
                throw new HttpException(400, sprintf('The current url %s not match target url %s set in the token.', $httpRequest->getUri(), $token->getTargetUrl()));
            }