Thanks for the report. It appears that the problem presents itself if you are missing a closing slash at the end of the repo_url. Add the closing slash and it should work correctly:

repo_url: https://github.com/opensciencegrid/docs/

I'm just guessing, but it could be that the added support for fragment and query string based schemes was confused by the lack of a closing slash and messed things up. In any event, it appears that we only tested with the slash, not without. After all, MkDocs own config includes the slash and the example in the documentation shows a slash.

I'm undecided if the closing slash should be a requirement. Although, apparently, it previously worked fine without it, so requiring it would be a regression for some users.

Does that mean the site_url should also have a trailing slash?

This is unique to repo_url. Consider the following examples:

http://example.com/user/project?branch=master&action=edit&path=path/to/page.md
http://example.com/user/project#branch/path/to/page.md
http://example.com/user/project/edit/branch/path/to/page.md

In the first two examples, the repo_url does not end in a slash, but it does in the third example. We support all three. So if your host uses a scheme which requires a slash between the repo_url and the edit_uri, then the setting should include one. However, if your host does not use a slash between the repo_url and the edit_uri, then your setting should not include one. At least that's how it currently works. The question is if that's how it should work.

I looked at the tests and realized that we were missing a test. We have a test were repo_url is set to http://example.com but not http://example.com/foo. The tests pass for the first one, but when I added the second, it failed. This is definitely a bug.

We were also missing a test for http://example.com/foo/ (closing slash included) but that works as it should. For now, the workaround is to end the repo_url with a slash.

@waylan

My apologies for commenting on a closed issue.

In my setup, mkdocs lives in a subdirectory of the repo.
https://github.com/dbogatov/status-site/tree/master/articles

This setup break edit links because it assumes the docs directory is in the root while it is not.
What would be the best workaround in my case?

Then you will need to manually set the edit_uri to properly point to the location of your docs_dir. The "default" only works when you use a default setup. You are not using a default setup, so you need to configure for your setup.

@waylan

Wonderful!
Could you post a link to the documentation where this property is explained?
I could not find myself.

@dbogatov http://www.mkdocs.org/user-guide/configuration/#edit_uri