After upgrading Drupal to version 10 and the Responsive Menu module to version 5.0.0-alpha1, the menu styles don't load correctly.
It happens because the module tries to load `libraries/mmenu/dist/mmenu.css` but this file got removed on this version - apparently, replaced by jquery.mmenu.css
Console log:
Refused to apply style from 'https://site.local.com/libraries/mmenu/dist/mmenu.css?s8yiwj' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.
At `responsive_menu.libraries.yml` we can see the responsive_menu.mmenu library calling the mmenu.css and mmenu.js
Comparing the files at menu/dist/ it's clear that the mmenu files were replaced, but the library was not updated. See screenshots attached
Update the code that was pointing to mmenu.css and mmenu.js, so it finds the correct files.
It doesn't seem to be a matter of updating the library to find jquery.mmenu.css instead of mmenu.css. I tried that, but it didn't work.
Active
5.0
Code
This issue can be closed. It was more related to custom code than contrib/core.
We started by adding drupal/once to the dependencies and replacing jquery once with Drupal once. The rest was custom code.
Thanks!