luci/applications/luci-app-dockerman/luasrc/view/dockerman/container_console.htm

<div class="cbi-map">
  <iframe id="terminal" style="width: 100%; min-height: 500px; border: none; border-radius: 3px;"></iframe>
</div>
<script type="text/javascript">
  document.getElementById("terminal").src = "http://" + window.location.hostname + ":7682";
</script>