No direct cell output when CDN disabled

[rzhao271]

Testing #12874

On insiders.vscode.dev on Microsoft Edge
Jupyter extension version: v2023.2.1000531229
Python extension version: v2023.3.10481011
Using ipywidgets 7

1. Create a new notebook
2. Add the following cell

# Sample1
from ipyleaflet import Map, Marker

center = (52.204793, 360.121558)

m = Map(center=center, zoom=15)

marker = Marker(location=center, draggable=True)
m.add_layer(marker);

display(m)

3. Configure "jupyter.widgetScriptSources": [] in user settings. Reload.
4. Run the cell.
5. 🐛 The output is blank. The status is a checkmark, but several seconds later, an error dialog pops up saying that I need to allow access to CDNs. I was expecting the status to be an X with a status message saying that a result couldn't be produced because access to CDNs wasn't allowed.

[DonJayamanne]

This should be fixed in the latest pre-release version of the Jupyter extension

[rzhao271]

Doesn't seem to be working with Jupyter extension version v2023.2.1000541047 and ipywidgets 7.7.2 in a virtualenv.

The result is still blank, and there's a checkmark.

[DonJayamanne]

Please could you enable logging as follows:

• Open settings & go into Jupyter->Logging
• Change the value to verbose
• Reload VS Code,
• Attempt to repro the issue & then copy the output from the Jupyter output panel.
  Also, please could you check if there are any errors in the console window in Developer Tools

[rzhao271]

I can still repro #12893 (comment) on the latest Jupyter and Python pre-release extensions.

There's a few errors in the console window in devtools:

extension.web.bundle.js:11 
        
       Uncaught (in promise) Error: Python Extension API not exported
    at R.registerHooks (extension.web.bundle.js:11:336057)
    at R.init (extension.web.bundle.js:11:335409)
    at R.getNewApi (extension.web.bundle.js:11:335178)
    at M.getApi (extension.web.bundle.js:11:345442)
    at M.hookupOnDidChangeInterpreterEvent (extension.web.bundle.js:11:348376)
    at M.getInterpreters (extension.web.bundle.js:11:340971)
    at M.populateCachedListOfInterpreters (extension.web.bundle.js:11:345696)
    at M.buildListOfInterpretersForFirstTime (extension.web.bundle.js:11:347750)
    at M.hookupOnDidChangeInterpreterEvent (extension.web.bundle.js:11:348333)
    at M.get onDidChangeInterpreter [as onDidChangeInterpreter] (extension.web.bundle.js:11:340501)

There's also the following error, though I purposely have CDN disabled:

Error: Module jupyter-leaflet, semver range ^0.17 is not registered as a widget module

Logs:
jupyter-output-view-output.txt
devtools-log.log

[DonJayamanne]

Closing as not planned, not worth this as its only when users change between multiple options.
So far we have never run into this.

[DonJayamanne]

Going to re-open as this is will need to be fixed, else its just a pain when testing

[DonJayamanne]

Not worth the effort.