iRule to block HTTPS uri

For this situation I do care about the host header since the link has both HTTP and HTTPS instance. We only want to block the HTTPS and still allow HTTP.

Is this correct?

when HTTP_REQUEST { if { [string tolower [HTTP::host]] starts_with "https://aaaa.com/bbb/ccc.xml" } { HTTP::respond 404 "Not Found" "Connection" "close" } }