Permission sensitive servlet not called for images

Hello,

We have configured permission sensitive caching on AEM as a cloud service. It is working for pages, but not for images.(Caching on CDN is disabled.)

From logs it appears that the auth checker servlet isn't called for images.

Example: https://localhost:8080/content/dam/secure/app1/en/activities/skiing/alpinists-rochefort-ridge.jpg

/auth_checker {
    # request is sent to this URL with '?uri=<page>' appended
    /url "/bin/permissioncheck"
    # only the requested pages matching the filter section below are checked, all other pages get delivered unchecked
    /filter {
        /0000 {
            /glob "*"
            /type "deny"
        }
        /0001 {
            /glob "/content/dam/secure/*.jpg"
            /type "allow"
        }
        /0002 {
            /glob "/content/wknd/us/en/magazine/*.html"
            /type "allow"
        }
    }
    # any header line returned from the auth_checker's HEAD request matching the section below will be returned as well
    /headers {
        /0000 {
            /glob "*"
            /type "deny"
        }
        /0001 {
            /glob "Set-Cookie:*"
            /type "allow"
        }
    }
}

 I hope PSC is supported for images. Requesting suggestion on how to fix the same