cytoscape / ipycytoscape

Problem

The widgets don't appear in the documentation, e.g.: https://ipycytoscape.readthedocs.io/en/latest/#simple-example.

:( indeed.

Errors from the console:

The resource from “https://ipycytoscape.readthedocs.io/en/latest/jupyter-cytoscape.js” was blocked due to MIME type (“text/html”) mismatch (X-Content-Type-Options: nosniff).
latest
Loading failed for the <script> with source “https://ipycytoscape.readthedocs.io/en/latest/jupyter-cytoscape.js”. latest:1:1
Falling back to https://unpkg.com/ for jupyter-cytoscape@^1.0.4 18 embed-amd.js:208:86198
Referrer Policy: Ignoring the less restricted referrer policy “no-referrer-when-downgrade” for the cross-site request: https://unpkg.com/jupyter-cytoscape@%5E1.0.4/dist/index.js require.min.js:1:16160
You have set a custom wheel sensitivity.  This will make your app zoom unnaturally when using mainstream mice.  You should change this value from the default only if you can guarantee that all your users will use the same hardware and OS configuration as your current machine. cytoscape.cjs.js:827:12
Uncaught (in promise) Error: An element must be of type `nodes` or `edges`; you specified ``
    ue cytoscape.cjs.js:811
    _e cytoscape.cjs.js:1076
    add cytoscape.cjs.js:13379
    addNodeModel widget.ts:377
    Ce index.js:41
    Ce index.js:41
    addNodeModel index.js:41
    update embed-amd.js:46
    render widget.ts:122
cytoscape.cjs.js:811:8
Uncaught (in promise) Error: An element must be of type `nodes` or `edges`; you specified ``
    ue cytoscape.cjs.js:811
    _e cytoscape.cjs.js:1076
    add cytoscape.cjs.js:13379
    addEdgeModel widget.ts:399
    Ce index.js:41
    Ce index.js:41
    addEdgeModel index.js:41
    update embed-amd.js:46
    render widget.ts:129
cytoscape.cjs.js:811:8

maybe it's because of this?

ipycytoscape/docs/environment.yml

Line 7 in 3830051

- jupyterlab=2

Indeed, ipycytoscape doesn't work with JupyterLab 2.

Widgets don't show in docs

Problem