<!DOCTYPE html>
<script>
  function findLink(arg) {
    var doc;
    if (arg == "self") {
      doc = document;
    } else {
      doc = frames[0].document;
    }
    return doc.getElementById(arg + "target");
  }
</script>
<a rel="noopener" target="_self" id="selftarget"
   href="noopener-target-1.html"></a>
<iframe srcdoc='
        <a rel="noopener" target="_parent" id="parenttarget"
           href="noopener-target-1.html"></a>
        <a rel="noopener" target="_top" id="toptarget"
           href="noopener-target-1.html"></a>'></iframe>