Forward client requests to the origin server for authorization, along with optional Set-Cookie headers, useful when you need to maintain tight access control. The edge server forwards an If-Modified-Since header, to which the origin needs to respond with a 304 (Not-Modified) HTTP status when authorization succeeds. If so, the edge server responds to the client with the cached object, since it does not need to be re-acquired from the origin.


Enables the centralized authorization behavior.