How to apply X-Forwarded-Proto https to specific client

Here is the irule. The CLIENT_ACCEPTED part works perfect but the HTTP_REQUEST does not as I am still getting blocked content errors on the new site. I think the "Insert X-Forwarded-For" being enabled might be causing a problem but I cant remove it without breaking the current site.

when CLIENT_ACCEPTED { if { [IP::addr [IP::client_addr] equals xx.xx.xx.xx] } { pool New_WWW_Pool } } when HTTP_REQUEST { HTTP::header insert "X-Forwarded-Proto" "https"; }