DefaultRequestPolicy.php

<?php

namespace Drupal\dynamic_page_cache\PageCache\RequestPolicy;

use Drupal\Core\PageCache\ChainRequestPolicy;
use Drupal\Core\PageCache\RequestPolicy\CommandLineOrUnsafeMethod;

/**
 * The default Dynamic Page Cache request policy.
 *
 * Delivery of cached pages is denied if either the application is running from
 * the command line or the request was not initiated with a safe method (GET or
 * HEAD).
 */
class DefaultRequestPolicy extends ChainRequestPolicy {
    
    /**
     * Constructs the default Dynamic Page Cache request policy.
     */
    public function __construct() {
        $this->addPolicy(new CommandLineOrUnsafeMethod());
    }

}