Laravel 5 url() doesn't contain scheme

I'm quite new in Laravel.

I'm working on an existing Laravel 5.8 project. I installed it locally with HomeStead.

I noticed a strange behaviour on redirects: considering my homepage is http://project.test/, when there is a redirection, say to /redirected, Laravel sets the location to http://project.test/://project.test/redirected! As I tried to figure out wat was going on, I saw that the url('/') Laravel function gives me ://project.test/ instead of http://project.test/.

request()->getSchemeAndHttpHost() gives http://project.test/.

I have the same problem with the static resources.

I certainly missed something, but so far I couldn't find any information about this.

via Chebli Mohamed