AutoTamperResponseBefore.cs

public void AutoTamperResponseBefore(Session oSession)
{
  var value = Encoding.UTF8.GetString(oSession.ResponseBody);
  value = value.Replace("&lt;", "<").Replace("&gt;", ">");
  oSession.oResponse.headers.Add("Response-Hijacked-By", "Fanie");
  oSession.ResponseBody = Encoding.UTF8.GetBytes(value);
}