IRule for reverse proxy with http rewrite

My company has modified the request. This is what they want now.

company site http://www.opco.com/jobs/apply external site http://newsite.com/mobileapply/opco

company site http://www.opco.com//jobs/apply/resume-thanks external site http://newsite.com/mobilethankyou/opco

company site http://www.opco.com/jobs/privacy external site http://newsite.com/mobileprivacy/opco

company site http://www.opco.com/jobs/terms external site http://newsite.com/mobileterms/opco

I modified the irule from above to this:

when CLIENT_ACCEPTED { set default_pool [LB::server pool] } when HTTP_REQUEST { switch [string tolower [HTTP::uri]] { "/jobs/apply" { HTTP::uri "/mobileapply/opco/" pool cbmserver.com } "/jobs/apply/resume-thanks" { HTTP::uri "/mobilethankyou/opco" pool cbmserver.com } "/jobs/privacy" { HTTP::uri "/mobileprivacy/opco" pool cbmserver.com } "/jobs/terms" { HTTP::uri "/mobileterms/opco" pool cbmserver.com } default { pool $default_pool } } }

When I test it, the URI changes to mobileapply/opco instead of staying jobs/apply and doesn't open the page.

When i try to add HTTP::header replace Host newsite.com, i get an error when i click the update button.