Why am I getting 404 warnings with jupyter-widget and .ttf/.woff/.woff2 file extensions?

[paddyroddy]

Description

quarto: 1.5.56
macOS 14.6.1

❯ quarto check
Quarto 1.5.56
[✓] Checking versions of quarto binary dependencies...
      Pandoc version 3.2.0: OK
      Dart Sass version 1.70.0: OK
      Deno version 1.41.0: OK
      Typst version 0.11.0: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
      Version: 1.5.56
      Path: /Applications/quarto/bin

[✓] Checking tools....................OK
      TinyTeX: (not installed)
      Chromium: (not installed)

[✓] Checking LaTeX....................OK
      Using: Installation From Path
      Path: /Users/paddy/texlive/2024/bin/universal-darwin
      Version: 2024

[✓] Checking basic markdown render....OK

[✓] Checking Python 3 installation....OK
      Version: 3.12.5
      Path: /private/tmp/talks/.venv/bin/python3
      Jupyter: 5.7.2
      Kernels: python3

[✓] Checking Jupyter engine render....OK

[✓] Checking R installation...........OK
      Version: 4.4.1
      Path: /opt/homebrew/Cellar/r/4.4.1/lib/R
      LibPaths:
        - /opt/homebrew/lib/R/4.4/site-library
        - /opt/homebrew/Cellar/r/4.4.1/lib/R/library
      knitr: 1.48
      rmarkdown: 2.28

[✓] Checking Knitr engine render......OK

Replicated https://quarto.org/docs/interactive/widgets/jupyter.html#leaflet-example

---
author: Anonymous
date: 2024-08-28
format: revealjs
title: Demo
---

```{python}
from ipyleaflet import Map, Marker, basemaps, basemap_to_tiles
m = Map(
  basemap=basemap_to_tiles(
    basemaps.NASAGIBS.ModisTerraTrueColorCR, "2017-04-08"
  ),
  center=(52.204793, 360.121558),
  zoom=4
)
m.add_layer(Marker(location=(52.204793, 360.121558)))
m
```

I get these warnings using quarto preview, which I don't get on GitHub Actions (using quarto publish). Locally, if I run quarto render I don't think I get the warnings.

❯ quarto preview
Preparing to preview
[1/1] index.qmd

Starting python3 kernel...Done

Executing 'index.quarto_ipynb'
  Cell 1/1: ''...Done


Watching files for changes
Browse at http://localhost:5524/
GET: /
  /@jupyter-widgets/html-manager/dist/1551f4f60c37af51121f.woff2 (404: Not Found)
  /@jupyter-widgets/html-manager/dist/eeccf4f66002c6f2ba24.woff (404: Not Found)
  /@jupyter-widgets/html-manager/dist/be9ee23c0c6390141475.ttf (404: Not Found)
  /@jupyter-widgets/1551f4f60c37af51121f.woff2 (404: Not Found)
  /@jupyter-widgets/eeccf4f66002c6f2ba24.woff (404: Not Found)
  /@jupyter-widgets/be9ee23c0c6390141475.ttf (404: Not Found)

[mcanouil]

Could you properly format your message, especially the code? For instance, the code cell does not close.

Also, could you clarify exactly the context where you have the error?
You showed the result of quarto preview) but you are talking about quarto publish` and GitHub Actions.

[paddyroddy]

I don't think it is causing any issues, just disconcerting seeing warnings. As mentioned above, it doesn't seem to cause any issues with publish.

[cderv]

As mentioned above, it doesn't seem to cause any issues with publish.

You won't see any log or warning from the command line. This is only happening on browser when file is loading. You see it with preview because a web server is opened and logging in terminal.

Check your published document in a browser and open the network tab in Chrome Inspect mode. You may see the same problem.

[paddyroddy]

Yep looks like it's there too https://paddyroddy.github.io/talks/scipy-2024/#/2/1

[cderv]

OK. So possibly a IPyleaflet issue when embedding. We would need to test it. Not sure yet why revealjs and html gets different ones though.

[lindyrock]

I'm getting this same issue.

---
title: "Bug Report"
format:
  html:
    ipywidgets: embed  # Errors occur with or without this setting
execute:
  echo:
    false
---

```{python}
import ipywidgets as widgets

uploader = widgets.FileUpload()
uploader

```

Quarto Version: 1.6.40
Operating System: MacOS 14.5

I noticed that the ipywidgets docs page is itself unable to render widgets.Label.