URL query attribute to indicate the wrapper used to render a request. The wrapper format determines how the HTML is wrapped, for example in

The menu link plugin manager. Type: \Drupal\Core\Menu\MenuLinkManagerInterface $menuLinkManager File

Create a snapshot when config is imported. Hierarchy class \Drupal\Core\EventSubscriber\

protected DefaultExceptionHtml

public static

protected ConfigImportSubscriber::validate

public EnforcedFormResponseSub

public AuthenticationSubscriber::onKer

Handle the EnforcedResponseException and deliver an EnforcedResponse. Hierarchy class

Last-chance handler for exceptions. This handler will catch any exceptions not caught elsewhere and report them as an error page.