Is there a way to suppress warnings on the D8 Status Report page? On my D8 status report (admin/reports/status) I have warnings about an issue I might wish to ignore. Is there any way to suppress the warnings on that report page once I have seen them and made my decision?

If it matters, the warnings are about using a CDN instead of installing libraries locally with YAML Form, which produces a wall of ten yellow warning rows in my Status Report. If we decide to continue using the CDNs instead of installing, we'd like to not see those warnings taking over so much real estate on the Status Report page in the future.
Unfortunately there is no hook_requirements_alter yet. As a workaround you may override system manager service which is responsible for invoking that hook.

src/SystemManager.php
    

namespace Drupal\example;

use Drupal\system\SystemManager as DefaultSystemManager;

/**
 * System Manager Service.
 */
class SystemManager extends DefaultSystemManager {

  /**
   * {@inheritdoc}
   */
  public function listRequirements() {
    // Suppress some unwanted warnings on Status report page.
    return array_filter(parent::listRequirements(), function ($requirement) {
      return $requirement['title'] != t('The message about CDN.');
    });
  }

}


src/ExampleServiceProvider.php
    

namespace Drupal\example;

use Drupal\Core\DependencyInjection\ContainerBuilder;
use Drupal\Core\DependencyInjection\ServiceProviderBase;

/**
 * Overrides the system manager service to suppress some warnings.
 */
class ExampleServiceProvider extends ServiceProviderBase {

  /**
   * {@inheritdoc}
   */
  public function alter(ContainerBuilder $container) {
    $container-&gt;getDefinition('system.manager')
      -&gt;setClass('Drupal\example\SystemManager');
  }

}