Embed doesn't work anymore? (e.g: Syncing error: no comm channel defined)

[hainm]

Hi there,

I am trying to embed nglview-js-widgets 3.1.0 in my application but getting below error: https://www.npmjs.com/package/nglview-js-widgets

You could try to download index.html.txt (-> index.html) and open it to see the error message index.html.txt

If I change the nglview-js-widgets version from 3.1.0 to 3.0.8 in the index.html, thing just work.

3.1.0 version works fine in the notebook and lab.

Do you have idea how to resolve this? Thanks.

[hainm]

Another way to reproduce is

pip install nglview==3.1.0 # ipywidgets 8, notebook 7

And in notebook

# 1st cell
import nglview as nv
view = nv.demo()
view

# 2nd cell
nv.write_html("index.html", view)
!open index.html

[hai-schrodinger]

Syncing error: no comm channel defined'

https://github.com/jupyter-widgets/ipywidgets/blob/b2531796d414b0970f18050d6819d932417b9953/packages/base/src/widget.ts#L478-L482

[hainm]

Seems like an issue with the NGL release instead: https://github.com/nglviewer/ngl/issues/1014