code: public static void setNoCacheHeaders(HttpServletResponse res) {
  
          res.setHeader(CmsRequestUtil.HEADER_CACHE_CONTROL, CmsRequestUtil.HEADER_VALUE_MAX_AGE + "0");
          res.addHeader(CmsRequestUtil.HEADER_CACHE_CONTROL, CmsRequestUtil.HEADER_VALUE_MUST_REVALIDATE);
          res.addHeader(CmsRequestUtil.HEADER_CACHE_CONTROL, CmsRequestUtil.HEADER_VALUE_NO_CACHE);
          res.addHeader(CmsRequestUtil.HEADER_CACHE_CONTROL, CmsRequestUtil.HEADER_VALUE_NO_STORE);
          res.setHeader(CmsRequestUtil.HEADER_PRAGMA, CmsRequestUtil.HEADER_VALUE_NO_CACHE);
      }
docs: Sets headers to the given response to prevent client side caching.<p>
  
  The following headers are set:<p>
  <code>
  Cache-Control: max-age=0<br>
  Cache-Control: must-revalidate<br>
  Pragma: no-cache
  </code>
  
  @param res the request where to set the no-cache headers