Can not access js.window / js.document

[theOvercloud]

Description

Good morning! First time reporting here. I have an issue, where i can not access the js.document or js.window object from the pydiode js module. I always get an AttributeError. I assume that this is just a configuration issue? Might this be a limitation of service workers?

Reproduce

1. Go to https://jupyterlite.github.io/demo/lab/index.html
2. Import the js module in a new pydiode notebook
3. Try to execute js.window or js.document

Note: I have the exact same behavior in my local deployment. I tried it in Chrome and Firefox.

Expected behavior

I would assume that i can access the document or window object.

Context

• JupyterLite version: latest (0.2.3)
• Browser and version: Chrome 122, Firefox 123

Browser Output

No satisfying version (^4.0.12) of shared module @jupyterlab/docregistry found in shared scope default.
Available versions: 4.0.11 from _JUPYTERLAB.CORE_OUTPUT remoteEntry.0dca0b46350f0c25c608.js:1:5807
Unsatisfied version 4.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/rendermime (required ^4.0.12) remoteEntry.0dca0b46350f0c25c608.js:1:5807
Unsatisfied version 6.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/coreutils (required ^6.0.12) remoteEntry.0dca0b46350f0c25c608.js:1:5807
Unsatisfied version 4.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/application (required ^4.0.12) remoteEntry.0dca0b46350f0c25c608.js:1:5807
Unsatisfied version 4.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/ui-components (required ^4.0.12) remoteEntry.0dca0b46350f0c25c608.js:1:5807
Unsatisfied version 4.1.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/apputils (required ^4.1.12) remoteEntry.0dca0b46350f0c25c608.js:1:5807
Unsatisfied version 4.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/translation (required ^4.0.12) remoteEntry.0dca0b46350f0c25c608.js:1:5807
Unsatisfied version 4.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/notebook (required ^4.0.12) remoteEntry.0dca0b46350f0c25c608.js:1:5807
Unsatisfied version 4.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/notebook (required ^4.1.0) remoteEntry.9f387e5e108e458f62c3.js:1:7192
Unsatisfied version 4.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/logconsole (required ^4.1.0) remoteEntry.9f387e5e108e458f62c3.js:1:7192
No satisfying version (^4.1.0) of shared module @jupyterlab/outputarea found in shared scope default.
Available versions: 4.0.11 from _JUPYTERLAB.CORE_OUTPUT remoteEntry.9f387e5e108e458f62c3.js:1:7192
Unsatisfied version 4.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/translation (required ^4.1.0) remoteEntry.9f387e5e108e458f62c3.js:1:7192
Unsatisfied version 4.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/rendermime (required ^4.1.0) remoteEntry.9f387e5e108e458f62c3.js:1:7192
Unsatisfied version 7.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/services (required ^7.1.0) remoteEntry.9f387e5e108e458f62c3.js:1:7192
Unsatisfied version 4.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/settingregistry (required ^4.1.0) remoteEntry.9f387e5e108e458f62c3.js:1:7192
Unsatisfied version 4.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/mainmenu (required ^4.1.0) remoteEntry.9f387e5e108e458f62c3.js:1:7192
Unsatisfied version 0.2.3 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlite/kernel (required ~0.1.0-beta.18) remoteEntry.9117113815033289c4d5.js:1:5416
Unsatisfied version 6.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/coreutils (required ^5.5.2) remoteEntry.9117113815033289c4d5.js:1:5416
Unsatisfied version 2.1.2 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @lumino/coreutils (required ^1.11.0) remoteEntry.9117113815033289c4d5.js:1:5416
Unsatisfied version 6.0.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/coreutils (required ^6.0.12) consumes:73:61
Unsatisfied version 2.1.2 of shared singleton module @lumino/signaling (required ^1.4.3) remoteEntry.f69e84c5aaec83c179ca.js:1:5108
Unsatisfied version 2.1.2 of shared singleton module @lumino/coreutils (required ^1.5.3) remoteEntry.f69e84c5aaec83c179ca.js:1:5108
Unsatisfied version 2.1.2 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @lumino/coreutils (required ^1.11.0) remoteEntry.960d5d0f875a651e597f.js:1:5108
Unsatisfied version 2.1.2 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @lumino/signaling (required ^1.10.0) remoteEntry.960d5d0f875a651e597f.js:1:5108
Unsatisfied version 2.0.1 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @lumino/messaging (required ^1.4.3) remoteEntry.2916befd91bdb8847e88.js:1:6038
Unsatisfied version 2.3.1 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @lumino/widgets (required ^1.19.0) remoteEntry.2916befd91bdb8847e88.js:1:6038
Unsatisfied version 1.9.4 from jupyter-leaflet of shared singleton module leaflet (required =1.4.0) remoteEntry.5e71a5e8dcb6330c0085.js:1:7918
Unsatisfied version 4.1.11 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @jupyterlab/apputils (required ^3.5.1) remoteEntry.6a37df5d4590b29196a3.js:1:4825
Unsatisfied version 2.3.1 from _JUPYTERLAB.CORE_OUTPUT of shared singleton module @lumino/widgets (required ^1.37.2) remoteEntry.c764a537ae4fed4fb4ca.js:1:5956
JupyterLite ServiceWorker was already registered service-manager.js:40:20
Kernel filesystem and JupyterLite contents will be synced index.js:171:24
Request for font "DejaVu Sans Mono" blocked at visibility level 2 (requires 3)
index.es6.js:4766:12
GET
https://jupyterlite.github.io/demo/extensions/@jupyterlite/pyodide-kernel-extension/static/128.fd6a7bd994d997285906.js?v=fd6a7bd994d997285906
[HTTP/1.1 200  0ms]
GET

https://jupyterlite.github.io/demo/extensions/@jupyterlite/pyodide-kernel-extension/static/600.0dd7986d3894bd09e26d.js?v=0dd7986d3894bd09e26d

[HTTP/1.1 200  0ms]
Pyodide contents will be synced with Jupyter Contents index.js:51:28

Starting WebSocket: wss://jupyterlite.github.io/demo/api/kernels/bc46d209-9e04-4c55-9534-81b16db26ce3 3 default.js:70:20

GET

https://jupyterlite.github.io/demo/extensions/@jupyterlite/pyodide-kernel-extension/static/576.ee3d77f00b3c07797681.js?v=ee3d77f00b3c07797681

[HTTP/1.1 200  0ms]
GET

https://jupyterlite.github.io/demo/extensions/@jupyterlite/pyodide-kernel-extension/static/128.fd6a7bd994d997285906.js?v=fd6a7bd994d997285906

[HTTP/1.1 200  0ms]
GET

https://cdn.jsdelivr.net/pyodide/v0.25.0/full/pyodide.js

[HTTP/1.1 200  0ms]
GET

https://cdn.jsdelivr.net/pyodide/v0.25.0/full/pyodide.asm.js

[HTTP/1.1 200  0ms]
Loading micropip, packaging pyodide.asm.js:9:94945

Loaded micropip, packaging pyodide.asm.js:9:95241

Loading ssl, openssl pyodide.asm.js:9:94945

Failed to fetch ipywidgets through the "jupyter.widget.control" comm channel, fallback to fetching individual model state. Reason: Control comm did not respond in time 336.0a90bd910629a565bb7e.js:1:5782

Loaded openssl, ssl pyodide.asm.js:9:95241

Loading sqlite3 pyodide.asm.js:9:94945

Loaded sqlite3 pyodide.asm.js:9:95241

Loading jedi, parso, decorator, Pygments, six pyodide.asm.js:9:94945

Loaded Pygments, decorator, jedi, parso, six pyodide.asm.js:9:95241

GET

https://jupyterlite.github.io/demo/build/2552.6c5224e.js

[HTTP/1.1 200  0ms]

[jtpio]

Thanks @theOvercloud.

This sounds similar to the issue on the pyodide kernel repo: jupyterlite/pyodide-kernel#94

Typically this is because the Pyodide kernel runs in a Web Worker.

Maybe this could be documented as part of #199.