public function Esi::addSurrogateEsiCapability

Adds ESI/1.0 capability to the given Request.

Parameters

Request $request A Request instance:

File

drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/Esi.php, line 75

Class

Esi

Esi implements the ESI capabilities to Request and Response instances.

Namespace

Code

public function addSurrogateEsiCapability(Request $request) {
  $current = $request->headers
    ->get('Surrogate-Capability');
  $new = 'symfony2="ESI/1.0"';
  $request->headers
    ->set('Surrogate-Capability', $current ? $current . ', ' . $new : $new);
}