/**
* Prepare the PJAX-specific response content.
*
* @param Response $response
* @param string $container
*
* @return $this
*/
protected function filterResponse(Response $response, $container)
{
if (!$response->isSuccessful()) {
$crawler = new Crawler($response->getContent());
$response->setContent($this->fetchContents($crawler, '.exception_message'));
return $this;
}
$crawler = new Crawler($response->getContent());
$response->setContent($this->makeTitle($crawler) . $this->fetchContents($crawler, $container));
return $this;
}