Clickjacking protection with X-Frame options

We have a situation where sites are missing X-Frame Options How can we return a response header with the name X-Frame-Options and the value DENY to prevent framing altogether, or the value SAMEORIGIN to allow framing only by pages on the same origin as the response itselfSecure Cookies

I found the following single line iRule implementation, can you please verify

when HTTP_RESPONSE { HTTP::header insert "X-FRAME-OPTIONS" “(DENY || SAMEORIGIN)” }