title: Smart solution for expires headers
body: <p>We want to set expires headers for used images, css and javascript to improve pagespeed, but we are aware of the cachingproblem when modifying a css or js script. </p>
  
  <p>Is it possible to add a meta or other tag in the file which loads the xhtml which tells the browser to refresh every element, no matter what caching is set on existing images, css or js?</p>