Bug: Unable to access inside "Actions" menubar button

[asere]

Related issue(s) or PR(s): None
Related project scope(s) (ex: client, CSS, grading, etc...) : Teach Tab in frontend
Related user(s): most teachers/users of Learn-OCaml

Bug description

This is a bug discovered by Nicolas Pécheux:
Clicking on "Actions" button in Teach Tab somehow show an empty list when clicking on it.

From @asere:
I have tested on my side, and I get the expected behavior on my computer, but I get this bug on my phone.
Maybe this bug is linked to the responsive design.

To Reproduce

Steps to reproduce the behavior:

1. Go to 'Teach' Tab
2. Click on 'Actions' button
3. Depending on your configuration, it may not show the list of possible actions.

Expected behavior

The "Actions" button should show a list of possible actions (actually "Create a new teacher token" and "Download student data in CSV").

Current configuration

• OS: Mac OS Mojave 10.14.6
• Browser Safari 14.1.2, Chome 94.0.4606.81 and Firefox 93.0

[erikmd]

Thanks a lot @asere for your thorough bug report!

This looks like a critical front-end issue… I'll try to fix it ASAP, and release 0.13.1 by the WE.

[erikmd]

Indeed @asere, it was precisely a responsive-mode related CSS bug.

Fixed in #450.

Meanwhile if you use a laptop/desktop, a trick to make the menubar show up amounts to typing Ctrl + − in the browser :)