NegotiationMiddleware::$app
The wrapped HTTP kernel.
Type: \Symfony\Component\HttpKernel\HttpKernelInterface
File
- 
              core/
lib/ Drupal/ Core/ StackMiddleware/ NegotiationMiddleware.php, line 19  
Class
- NegotiationMiddleware
 - Provides a middleware to determine the content type upon the accept header.
 
Namespace
Drupal\Core\StackMiddlewareCode
protected $app;
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