Linking to directories without a trailing slash in 4.0.0

[brockfanning]

Hello, it seems that version 4.0.0 is more strict about linking to directories without a trailing slash than 3.19.4 was. Whereas in 3.19.4 it allowed it when there was an "index.html" file in the directory, 4.0.0 is throwing an error. For example, see this failing test run upgrading 4.0.0 and then a passing test run after reverting to 3.19.4.

I'm not sure if this is a bug - maybe it was an intentional change? But I didn't see anything obvious about it in the changelog, so I thought I would post this here in case it's helpful. Feel free to close this if that change was intentional.

[gjtorikian]

Hey! Thanks so much for this issue report. This was definitely not intentional. And, unfortunately, the test which should have tested this feature was also broken in v3.x. 😅

4.0.1 corrects this problem.