DynamicPageCacheSubscriber::$cacheContexts

The default cache contexts to vary every cache item by.

Type: string[]

File

core/modules/dynamic_page_cache/src/EventSubscriber/DynamicPageCacheSubscriber.php, line 69

Class

DynamicPageCacheSubscriber

Returns cached responses as early and avoiding as much work as possible.

Namespace

Code

protected $cacheContexts = [
  'route',
  // Some routes' controllers rely on the request format (they don't have
  // a separate route for each request format). Additionally, a controller
  // may be returning a domain object that a KernelEvents::VIEW subscriber
  // must turn into an actual response, but perhaps a format is being
  // requested that the subscriber does not support.
  // @see \Drupal\Core\EventSubscriber\RenderArrayNonHtmlSubscriber::onResponse()
'request_format',
];