Response subscriber to handle AJAX responses. Hierarchy class \Drupal\Core\EventSubscriber\

Whether to send cacheability headers for debugging purposes. Type: bool File

The logger channel factory. Type:

protected

A config object for the system performance configuration. Type:

protected static ExceptionJsonSubscriber

public DefaultExceptionHtmlSub

One of the error level constants defined in

public ExceptionLoggingSubscriber:

The available main content renderer services, keyed per format. Type: