Hello
have you checked this?
BR
That post has been around a while.
If you use WordPress SEO, it will handle the canonical link for you. If you don’t, Roots has a function that ensures the [canonical link will always be the permalink][1]. That eliminates most of the issues raised whilst keeping the benefits of relative URLs.
If you’re still not convinced, you can turn off relative URLs in lib/config.php.
[1]: https://github.com/roots/roots/blob/master/lib/cleanup.php#L29-L43
Ok, thanks for the clarification!