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    <h3>Editing: AbstractSurrogateFragmentRenderer.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpKernel\Fragment;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Controller\ControllerReference;
use Symfony\Component\HttpKernel\HttpCache\SurrogateInterface;
use Symfony\Component\HttpKernel\UriSigner;

/**
 * Implements Surrogate rendering strategy.
 *
 * @author Fabien Potencier &lt;fabien@symfony.com&gt;
 */
abstract class AbstractSurrogateFragmentRenderer extends RoutableFragmentRenderer
{
    private ?SurrogateInterface $surrogate;
    private FragmentRendererInterface $inlineStrategy;
    private ?UriSigner $signer;

    /**
     * The &quot;fallback&quot; strategy when surrogate is not available should always be an
     * instance of InlineFragmentRenderer.
     *
     * @param FragmentRendererInterface $inlineStrategy The inline strategy to use when the surrogate is not supported
     */
    public function __construct(SurrogateInterface $surrogate = null, FragmentRendererInterface $inlineStrategy, UriSigner $signer = null)
    {
        $this-&gt;surrogate = $surrogate;
        $this-&gt;inlineStrategy = $inlineStrategy;
        $this-&gt;signer = $signer;
    }

    /**
     * Note that if the current Request has no surrogate capability, this method
     * falls back to use the inline rendering strategy.
     *
     * Additional available options:
     *
     *  * alt: an alternative URI to render in case of an error
     *  * comment: a comment to add when returning the surrogate tag
     *  * absolute_uri: whether to generate an absolute URI or not. Default is false
     *
     * Note, that not all surrogate strategies support all options. For now
     * 'alt' and 'comment' are only supported by ESI.
     *
     * @see Symfony\Component\HttpKernel\HttpCache\SurrogateInterface
     */
    public function render(string|ControllerReference $uri, Request $request, array $options = []): Response
    {
        if (!$this-&gt;surrogate || !$this-&gt;surrogate-&gt;hasSurrogateCapability($request)) {
            if ($uri instanceof ControllerReference &amp;&amp; $this-&gt;containsNonScalars($uri-&gt;attributes)) {
                throw new \InvalidArgumentException('Passing non-scalar values as part of URI attributes to the ESI and SSI rendering strategies is not supported. Use a different rendering strategy or pass scalar values.');
            }

            return $this-&gt;inlineStrategy-&gt;render($uri, $request, $options);
        }

        $absolute = $options['absolute_uri'] ?? false;

        if ($uri instanceof ControllerReference) {
            $uri = $this-&gt;generateSignedFragmentUri($uri, $request, $absolute);
        }

        $alt = $options['alt'] ?? null;
        if ($alt instanceof ControllerReference) {
            $alt = $this-&gt;generateSignedFragmentUri($alt, $request, $absolute);
        }

        $tag = $this-&gt;surrogate-&gt;renderIncludeTag($uri, $alt, $options['ignore_errors'] ?? false, $options['comment'] ?? '');

        return new Response($tag);
    }

    private function generateSignedFragmentUri(ControllerReference $uri, Request $request, bool $absolute): string
    {
        return (new FragmentUriGenerator($this-&gt;fragmentPath, $this-&gt;signer))-&gt;generate($uri, $request, $absolute);
    }

    private function containsNonScalars(array $values): bool
    {
        foreach ($values as $value) {
            if (\is_scalar($value) || null === $value) {
                continue;
            }

            if (!\is_array($value) || $this-&gt;containsNonScalars($value)) {
                return true;
            }
        }

        return false;
    }
}
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