caching Media View

Can someone tell me how caching in media views is supposed to work?

example:
$this->view = 'Media';
$params = array(
'id' => $id,
'cache' => 100000,
'download' => false,
'extension' => 'jpg',
'path' => 'restricted' . DS . 'uservideo' . DS

);
$this->set($params);

Works fine but I get the feeling its not caching. The headers of the
images are 200 OK not 304
Am I doing something wrong? Or am I misunderstanding / overlooking
something?
'cache'=>true does not change anything either...
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups "CakePHP" group.
To post to this group, send email to cake-php@googlegroups.com
To unsubscribe from this group, send email to cake-php+unsubscribe@googlegroups.com
For more options, visit this group at http://groups.google.com/group/cake-php?hl=en
-~----------~----~----~----~------~----~------~--~---