Fix for image.path causing an invalid url error

[benbalter]

If image.path is invalid, absolute_url? will return nil which is falsy. Explicitly look for false before we try to make the URL absolute to avoid an upstream error.

[DirtyF]

Tests are passing, should be fine, but previous tests were also OK. 🤔
I just wonder if we should not provide another example of an invalid path. Whats does : stand for here?

[benbalter]

I should have been more explicit. I'm sorry. This is a fix for the failing test on master described in #225 (comment).

Whats does : stand for here?

Jekyll used to have issues with :s in paths, fixed in 3.5. When we call filters.absolute_url, that method doesn't guard against Addressable invalid URL error when it tries to parse the URL.

This was implemented originally via #199:

My intention here was to prevent the build from failing due to invalid or missing URLs. If a user provides an invalid URL right now, we output it to the best of our ability, even if it's wrong (or isn't live, etc.).

[DirtyF]

@benbalter crystal clear, thanks for the heads up.

[benbalter]

@jekyllbot: merge +minor