I have a URL stored in memcached in the key "some-key". I have the
following location defined:

location /redirect-from-memcached {
set $memcached_key some-key;
memcached_pass localhost:11211;
add_header Location What goes here?
return 302;
}


How can I, in nginx 0.6, access the value of "some-key" in memcached
and use it in the Location header?

Thanks,
Joe