HTTPS to HTTPS redirect

• Try putting * after each switch arm clause - just in case you have say :443 appended to the end
• Add 'return' after HTTP::respond (best practise inncase you have other iRule statements after the switch)
• Add logging statements in

Updated iRule;-

when HTTP_REQUEST {
    log local0. "[HTTP::host] on port [TCP::local_port]"
    switch -glob [string tolower [HTTP::host]] {
        "domain1.com*" -
        "domain2.com*" -
        "www.domain1.com*" -
        "www.domain2.com*"  {
            log local0.  "redirecting"
            HTTP::respond 301 Location "https://www.mymainsite.com"  
            return     
        }
    }
}