Contao\CoreBundle\Monolog\ContaoTableProcessor::updateBrowser PHP Method

    private function updateBrowser(ContaoContext $context, Request $request = null)
    {
        if (null !== $context->getBrowser()) {
            return;
        }
        $context->setBrowser(null === $request ? 'N/A' : $request->server->get('HTTP_USER_AGENT'));
    }