303 Question #238: Real Exam Question with Answer & Explanation

An LTM Specialist needs to rewrite text within an HTML response from a web server. A client is sending the following HTTP request: GET / HTTP/1.1 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8 Accept-Language. en-US,en;q=0.5 Accept-Encoding. gzip, deflate Cache-Control: no-cache Connection: keep-alive Cookie. somecookie=1 HTTP/1.1 200 OK Server: Apache/2.2.15 (Unix) Last-Modified. Wed, 12 Aug 2009 00:00:30 GMT Accept-Ranges: bytes Content-Length. 1063 X-Cnection: close Content-Type. text/html; charset=UTF-8 Vary: Accept-Encoding Content-Encoding. gzip Connection: Keep-Alive Although a stream profile has been added to the virtual server, the content within the HTTP response is NOT being matched and therefore NOT modified. Which header field is contributing to the issue?