Folding icon in the sidebar no longer working

[stradig]

Problem

The folding icon in the sidebar stopped working in 0.4.41. You can still click on the text, but clicking on the icon no longer works. This is the case both for opening and closing a section.

Steps

1. Enabled folding in book.toml
   [output.html]
   fold.enable = true
   fold.level = 0
2. Build the book
3. Click on the folding icon, nothing will happen. In 0.4.40 it still worked, in 0.4.41 it stopped working. I tested up to version 0.4.44

Possible Solution(s)

No response

Notes

No response

Version

mdbook v0.4.43

[shenef]

Did you update your index.hbs file as mentioned in the 0.4.41 changelog?
https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md#mdbook-0441

[stradig]

Thanks for the fast answer! We do not have a custom index.hbs. But I also tried putting the one from 0.4.43 in . That did not change anything.