Replacing hostname in HTTP RESPONSE header using stream profile and/or Irule

A few additional things:

1. You definitely need an HTTP profile for this, as the HTTP header replace logic requires it, and you specifically only want to capture and replace HTTP traffic anyway (not anything below HTTP).

2. I would leave the request chunking option at Preserve.

3. Would users actually reference the URL with the included port (ie. https://public.mycompany.com:443 vs. https://public.mycompany.com)?

   when HTTP_REQUEST {
        Disable the stream filter for requests
       STREAM::disable
   
        Remove this header to prevent server from compression response
       HTTP::header remove Accept-Encoding
   }
   when HTTP_RESPONSE {
       set internal_host "host15.mycompany.com:8010" 
       set external_host "public.mycompany.com"
   
        Rewrite the Location header for redirects 
       if { [HTTP::header exists Location] }{ 
           HTTP::header replace Location [string map "$internal_host $external_host" [HTTP::header Location]] 
       } 
   
        Rewrite the response content using a stream profile if it is text 
       if { [HTTP::header Content-Type] contains "text" } { 
   
            Set the stream expression with the find/replace strings 
           STREAM::expression "@$internal_host@$external_host@" 
   
            Enable the stream filter 
           STREAM::enable 
       } 
   }