Julia widgets not working

[HTofi]

Description

The widgets provided by Julia's Interact package cannot be displayed in output cells.

Reproduce

This is an example of a @manipulate slider which doesn't work with my Jupyterlab desktop installation:

using Plots
using Interact

u(x, t) = 1/2 * (sin(x + t) - sin(t - x))

x = 1:0.01:5
@manipulate for tᵢ in 0:0.1:1
    y = [u(x[i], tᵢ) for i in 1:length(x)]
    plot(x, y)
end

In the output cell only a plot can be seen, but the slider doesn't show up. No error messages are thrown by the Julia kernel.

Context

• Operating System and version: Manjaro Linux
• JupyterLab-Desktop version: 3.5.0
• Installer: AUR
• WebIO extension installed with pip

[JasonWeill]

Have you tried using this same notebook with jupyterlab as installed by Conda or Mamba, or with Jupyter Notebook?

[HTofi]

OK, I don't know what was the problem exactly, but it seems to be solved now after I updated Julia. Sorry for bothering you!

[JasonWeill]

No problem! Please reach out again if you see any other bugs with JupyterLab Desktop.