JavaScript output is disabled in JupyterLab

[phurwicz]

JavaScript output work in Binder notebooks but become disabled in Juniper.

I would really like to see a fix or get some hints toward it. 🙏 Thanks in advance!

For example, the following code block

from IPython.display import Javascript

Javascript('console.log("hello world");')

works in Binder but not in the Juniper demo that uses the same repo ines/spacy-io-binder.

[phurwicz]

Seems similar to thebelab's issue executablebooks/thebe#112.