title: Is content-encoding being set to UTF-8 invalid?
body: <p>Hi I have a client that is trying to POST to us with the following http headers:</p>
  
  <pre><code>content-type: application/x-www-form-urlencoded
  content-encoding: UTF-8
  </code></pre>
  
  <p>But our web application firewall keeps picking them up and throwing error:</p>
  
  <blockquote>
    <p>Message:  [file "/etc/httpd/modsecurity.d/10_asl_rules.conf"] [line "45"] [id "340362"] [msg "Atomicorp.com WAF Rules: ModSecurity does not support content encodings and can not detect attacks using it, therefore it must be blocked."] [severity "WARNING"] Access denied with code 501 (phase 2). Match of "rx ^Identity$" against "REQUEST_HEADERS:Content-Encoding" required.
    Action: Intercepted (phase 2)</p>
  </blockquote>
  
  <p>Anyone would like to shed some light into this matter?</p>