显示HTML而不是预先格式化的文本Guzzle

Question

我正在进行此API调用，我从他们的API获取Google图书。但是，浏览器中的最终结果是<pre>标记中的预格式化代码（它也会破坏JSON，并因该标记而引发错误）。我如何才能获得它，以便在浏览器中显示实际网站，而不是原始代码？

public function findAction(Request $request)
{
    $form = $this->createFormBuilder(null, ['csrf_protection' => false])
        ->add('Volume', TextType::class)
        ->add('Search', SubmitType::class)
        ->getForm();

    $form->submit($request->query->all());

    if($form->isSubmitted() && $form->isValid()) {

        $client = new Client();
        $body = $client->get("https://www.googleapis.com/books/v1/volumes?q=".$form->get('Volume')->getData());
        $response = $body->getBody()->getContents();
        $response = json_decode($response, true);

        if(array_key_exists('items', $response)){
            return $this->render('BlogsiteSearchBundle:Page:result.html.twig', ['items' => $response['items']]);
        } else {
            return new Response('Google did not have any items for this entered data', 400);
        }
    }

    return new Response('Google Volume Not Found', 404);
}