SAML SLO response data destination modification needed

when CLIENT_ACCEPTED {
    ACCESS::restrict_irule_events disable
}
when HTTP_REQUEST
{
        set query [URI::query [HTTP::uri]]
        if { [HTTP::uri] contains "saml/idp/profile/post/sls" and [string tolower [HTTP::query]] contains "referer inserted by IDP2"} {
            log local0. "second logout from IDP requested from IP [IP::client_addr] URI [HTTP::uri] query [HTTP::query]"

                return
            }


        if { [HTTP::uri] contains "saml/idp/profile/post/sls" } {
            log local0. "logout requested from IP [IP::client_addr] URI [HTTP::uri] query [HTTP::query]"
            HTTP::respond 307 Location "https://IDP2/logmeout"
            log local0. "SLO from SP detected and redirected" 

}
else {
        return

     }
}