Forcing to IE 9 Compatability mode iRule

There is a method that can be used via a HTTP header which would be far easier to do than inserting a meta tag. This is my source: http://stackoverflow.com/questions/18024953/x-ua-compatible-ie-9-vs-ie-emulateie9-other-browsers.

So, this would work;

when HTTP_RESPONSE {
 HTTP::header insert "X-UA-Compatible" "IE=EmulateIE9"
}