Using iRules to mitigate Microsoft's MS15-034 / CVE-2015-1635 Range vulnerability
As more information becomes available regarding the recently published Range vulnerability affecting Microsoft platforms (see MS15-034and CVE-2015-1635), you can start mitigating this issue for your ...
The iRule is already case insensitive as noted in the HTTP::header syntax page: "The header name is not case sensitive, so for example, 'HTTP::header value HEADER_NAME' will match a header with the name HeAdEr_NaMe."