&gt;):play.api.mvc.RequestHeader=&gt;play.api.mvc.Handler"></a>
      <a id="doFilter((RequestHeader)⇒Handler):(RequestHeader)⇒Handler"></a>
      <h4 class="signature">
      <span class="modifier_kind">
        <span class="modifier"></span>
        <span class="kind">def</span>
      </span>
      <span class="symbol">
        <span class="name">doFilter</span><span class="params">(<span name="next">next: (<span class="extype" name="play.api.mvc.RequestHeader">RequestHeader</span>) ⇒ <span class="e