iRule not working properly

Hi,

Here's my virtual server,

Here's my default pool,

here's my pool members,

Then I have created following iRule and have assigned it to the virtual server.

when HTTP_REQUEST { if { [HTTP::uri] starts_with "/api/" } { pool API.Access } }

when HTTP_RESPONSE { if { [HTTP::is_redirect] } { foreach aCookieName [HTTP::cookie names] { set currentCookie "$aCookieName=[HTTP::cookie value $aCookieName]" set cookies "$cookies\r\nSet-Cookie: $currentCookie" } HTTP::respond 200 content "\ The server is trying to redirect the client to an external site, but it is forbidden" Set-Cookie $cookies } }

Here's the pool called API.Access

Here's it's members,

My URL looks like this,

http://portal.mydomain.com

However I want them to be redirected to the API.Access pool when the URL looks like this,

http://poral.mydomain.com/api/help

When I add my iRule, it does work for http://poral.mydomain.com/api/help but not for http://poral.mydomain.com.

Can you please point me in the right direction?

Many thanks.