public function Response::mustRevalidate

Returns true if the response must be revalidated by caches.

This method indicates that the response must not be served stale by a cache in any circumstance without first revalidating with the origin. When present, the TTL of the response should not be overridden to be greater than the value provided by the origin.

@api

Return value

Boolean true if the response must be revalidated by a cache, false otherwise

File

drupal/core/vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Response.php, line 561

Class

Response
Response represents an HTTP response.

Namespace

Symfony\Component\HttpFoundation

Code

public function mustRevalidate() {
  return $this->headers
    ->hasCacheControlDirective('must-revalidate') || $this->headers
    ->has('proxy-revalidate');
}