SSL Forward proxy and 302 Redirects?

The below iRule is part of an SSL Intercept solution to sent traffic to Bluecoat Proxies after being decrypted, but certain sites send a 302 redirect with an https location header and i think this results in a redirection loop, does anyone have any experience with this kind scenario while deploying an SSL Forward proxy and what would be the fix, i tried capture the response and remove the location header and inserting an http one, but that did not work out..

when HTTP_REQUEST {
    if { $static::DEBUG } { log local0. "in event" }
     Check proxy service availability. If down, VIP target around it to egress
    if { [active_members $static::PROXY_SERVICE_POOL] == 0 } {
         Proxy service is down - VIP target around it to egress
        log local0. "ALERT: Proxy service is down - skipping to egress"
        virtual $static::EGRESS_TCP_VIP
    } else {
        if { $static::DEBUG } { log local0. "sending to proxy service" }
         Get the hostname from the X-Proxy-HTTPS header or the Host header
        if { [HTTP::header exists X-Proxy-HTTPS] } {
             use the SNI value
            set host [lindex [split [HTTP::header X-Proxy-HTTPS] ":"] 1]
            set port 80
        } else {
             use the Host header
            if { [HTTP::host] contains ":" } {
                set host [lindex [split [HTTP::host] ":"] 0]
                set port [lindex [split [HTTP::host] ":"] 1]
            } else {
                set host [HTTP::host]
                set port 80
            }
        }

         Send modified PROXY request
        HTTP::uri "http://${host}:${port}[HTTP::uri]"
        HTTP::header insert Proxy-Connection "Keep-Alive"

         Direct to the downstream proxy (and optionally enable SNAT)
        snat automap
        pool $static::PROXY_SERVICE_POOL
    }       
}