URI redirection https to an external http URL

You could replace the HTTP profile functionality for rewriting redirects with an iRule that inspects the Location header in redirects and only rewrites to https:// for your specific scenarios. If you have a lot of URIs to check you could add them to a datagroup. In this example, I've used a class named locations_to_preserve_class

 
 when HTTP_RESPONSE { 
  
     Check if response is a redirect 
    if {[HTTP::is_redirect]}{ 
  
        Save the Location header value to lowercase 
       set location [string tolower [HTTP::header Location]] 
  
        Check if the Location header value starts with http:// and is not one to preserve as http:// 
       if {$location starts_with "http://" \ 
          and not ([matchclass $location starts_with $::locations_to_preserve_class])}{ 
  
           Replace http:// with https:// in the Location header 
          HTTP::header replace Location [string map "http:// https://" $location] 
       } 
    } 
 } 
 

Aaron