protected function FinishResponseSubscriber::setResponseNotCacheable in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php \Drupal\Core\EventSubscriber\FinishResponseSubscriber::setResponseNotCacheable()

Add Cache-Control and Expires headers to a response which is not cacheable.

Parameters

\Symfony\Component\HttpFoundation\Response $response: A response object.

\Symfony\Component\HttpFoundation\Request $request: A request object.

1 call to FinishResponseSubscriber::setResponseNotCacheable()

FinishResponseSubscriber::onRespond in core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php

Sets extra headers on successful responses.

File

core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php, line 233

Class

FinishResponseSubscriber

Response subscriber to handle finished responses.

Namespace

Drupal\Core\EventSubscriber

Code

protected function setResponseNotCacheable(Response $response, Request $request) {
  $this
    ->setCacheControlNoCache($response);
  $this
    ->setExpiresNoCache($response);

  // There is no point in sending along headers necessary for cache
  // revalidation, if caching by proxies and browsers is denied in the first
  // place. Therefore remove ETag, Last-Modified and Vary in that case.
  $response
    ->setEtag(NULL);
  $response
    ->setLastModified(NULL);
  $response->headers
    ->remove('Vary');
}