Symfony version(s) affected: 4.1.8

Description

My app base on laravel 5.6, when I upgrade composer libs, symfony http-foundation is update from 4.1.7 to 4.1.8. And laravel feature test is crash, it can not simulate request to url, all return 404 code.

I think a minor version should not broke compatibility in other libs.

How to reproduce

1. make a laravel 5.6 app.
2. make a feature test.
3. try to test some api like:

        $response   = $this->json('GET', '/some/path');
        dd($response->exception);