Irule for referrer policy

I need to set a referrer policy for f5 APM but unable to access site when this applied.

 

when HTTP_REQUEST { switch -glob [HTTP::header "Referer"] { "http://gateway.co.uk/*" { Allow Request to go through... } "" { HTTP::respond 200 content "" } default { HTTP::redirect [HTTP::header "Referer"] } } }

 

version 13.1