Use of Widgets require us to download supporting files from a 3rd party website. The 3rd party websites are as follows:

• jsDelivr
• UNPKG

This can be configured in the settings as follows:

"jupyter.widgetScriptSources": ["jsdelivr.com", "unpkg.com"],

If the settings are not configured accordingly, Widgets might not render or function correctly. If you already have this setting configured correctly and the widget is still not displaying, it could be because that widget (or specific version) is not available from those sources.