HTTPS: Remove www. from hostname

To Nitass' point, the HTTP::header replace command would not necessarily alter the browser URL. It's going to be applied to the ingress flow, so only the server should see it. Of course if the application causes a redirect after the fact, then that's something else entirely. For what it's worth, the HTTP iRule you have above should work for HTTP and HTTPS as long as the virtual server has decrypted access to the request payload. So two questions:

1. Are you offloading SSL at the virtual server, via client SSL profile? If not, then you cannot parse HTTP headers in an iRule.

    

2. On the HTTP virtual server, given the above iRule code, does the browser URL actually change (removes the "www.")? If so, do you have some other iRule code applied, or does the server issue a redirect to that URL?