Lighttpd

That Works (access-deny works):

$HTTP["url"] =~ "^/static/cache/" {
   url.access-deny = ( ".jpg", ".jpeg", ".png" )
}

That Works not (access-deny doesn't work):

$HTTP["url"] =~ "^/static/cache/" {
   url.access-deny = ( ".jpg", ".jpeg", ".png" )
   $HTTP["referer"] == "" {
   }
}

The second config is the same, with only one more condition. But the condition does nothing. And the action is not the same as in the first example.

-- andihit