Symfony HTTP Cache doesn't work in 3.4

I've tested code form Symfony Docs in Symfony 3.2 and it was everything good, but cache doesn't work in 3.4.8.

Of courese I want to use Symfony Reverse Proxy.

My app_dev.php

$kernel = new AppKernel('dev', true);
if (PHP_VERSION_ID < 70000) {
    $kernel->loadClassCache();
}
$kernel = new AppCache($kernel);

My action look's like this:

public function indexAction(Request $request)
{
    // [...]
    $response = $this->render('base.html.twig');

    $response->setSharedMaxAge(3600);

        return $response;
}

Am I missing something, that isn't nessesery in Symfony 3.2?