Unable to set a cookie.

[zendevil]

I have a "some-id" cookie already set in the browser. To unset it, I go to a resource whose handle-ok looks like the following:

:handle-ok (fn [ctx]
               (ring.util.response/set-cookie
                {:status 200}
                "some-id"
                nil
                {:path "/" :max-age 1}))

This does return a status 200 with the cookie unset in the browser text, but in the browser resources section, the cookie is not unset. Why is this the case?