Embed library's jupyter widgets in a standalone HTML web page

I followed this, but it only told me how to add ipywigets’ built-in widget such as IntSlider. I want to embed open3d’s JVisualizer into a standalone web page.
here’s my code

from open3d import JVisualizer
from ipywidgets.embed import embed_minimal_html
j = JVisualizer()

embed_minimal_html('export.html', views=[j], title='Widgets export')

and I got a html like this

<!DOCTYPE html>
<html lang="en">
    <meta charset="UTF-8">
    <title>Widgets export</title>

<!-- Load require.js. Delete this if your page already loads require.js -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.4/require.min.js" integrity="sha256-Ae2Vz/4ePdIu6ZyI/5ZGsYnb+m0JlOmKPjt6XZ9JJkA=" crossorigin="anonymous"></script>
<script src="https://unpkg.com/@jupyter-widgets/html-manager@^0.18.0/dist/embed-amd.js" crossorigin="anonymous"></script>

<script type="application/vnd.jupyter.widget-state+json">
  "version_major": 2,
  "version_minor": 0,
  "state": {
    "c24feb038091466b80063940fad944b1": {
      "model_name": "LayoutModel",
      "model_module": "@jupyter-widgets/base",
      "model_module_version": "1.2.0",
      "state": {}
    "21b49d3a55d644c3a914c0f0fb58c7ae": {
      "model_name": "JVisualizerModel",
      "model_module": "open3d",
      "model_module_version": "~0.12.0",
      "state": {
        "_dom_classes": [],
        "geometry_jsons": [
            "type": "PointCloud",
            "points": [
             .... (many lines here)
        "layout": "IPY_MODEL_c24feb038091466b80063940fad944b1"
<script type="application/vnd.jupyter.widget-view+json">
{"version_major": 2, "version_minor": 0, "model_id": "21b49d3a55d644c3a914c0f0fb58c7ae"}


then I open it in the chrome and got

So what’s the proper way to do it?