discourse/app/views/common/_special_font_face.html.erb

<%#
  The fonts are loaded outside of the stylesheet so that we can dynamically change the path.
  This is to get around CDN caching on the Origin:

    https://forums.aws.amazon.com/thread.jspa?threadID=114646

  Also added a cache breaker there in case we have breaking config changes
  &1 was added last when the nginx sample config changed
%>

<% font_domain = "#{request.protocol}#{request.host_with_port}&2" %>

<style>
  @font-face {
    font-family: 'FontAwesome';
    src: url('<%=asset_path "fontawesome-webfont.woff2" %>?<%= font_domain %>&v=4.5.0') format('woff2'),
         url('<%=asset_path "fontawesome-webfont.woff" %>?<%= font_domain %>&v=4.5.0') format('woff');
  }
</style>