relative links are not correctly working on 0.4.42

[mimoo]

Problem

we had to downgrade to mdbook@0.4.40 in order to have relative links work in the rendered html (when we use subfolders in chapters). Version 0.4.42 had this problem:

• imagine you have ./foo/bar.md and ./foo2/bar2.md in the summary file
• imagine that in the rendered page you go to is in /foo/bar/index.html
• then mdbook usually convert the link in the menu to the other page as ../foo2/bar2/index.html
• but it doesn't and render it as foo2/bar2/index.html (which obv doesn't work)

[ehuss]

Sorry, I'm not quite able to follow the reproduction. With those two entries in SUMMARY.md, going to /foo/bar/index.html would be a 404. Can you show the exact contents of the SUMMARY.md file, and any other relevant source files?

[mimoo]

an example would be:

# Summary

- [page1](./page1/index.md)
- [page2](./page2/index.md)

if you are on page 1, the link to page 2 is broken and will lead to page1/page2/index.html

I can probably produce more logs, but the problem comes from the mdbook binary. If we get the version 0.4.42 it doesn't work, but if we install it with cargo install mdbook@0.4.40 the links are properly rendered. I'm assuming the bug comes from a path helper dependency or something

[ehuss]

Hm, I'm not able to reproduce that.

Do you maybe have a stale book directory that needs to be deleted? Do you have a custom theme or any other custom settings? Which browser/platform are you on?

[mimoo]

This was happening to us in cloudflare pages BTW, we didn't try reproducing it locally as downgrading the version fixed the issue. Here are the logs so you can see the exact dependency version pulled when doing cargo install mdbook. Maybe you can try to reproduce locally with the git commit that is getting pulled in these logs :o

Or you can just give up if nobody else is seeing this issue. Maybe not worth investigating if nobody else complains about that.

[ehuss]

It looks like you have a custom index.hbs. It will need to be updated to the latest version since some of the navigation has changed.

[mimoo]

oh I see, thanks so much for taking a look!