URL regex in schema blocks valid urls and allows invalid urls

[hidde-jan]

The URL regex is both too restrictive and too lenient.

It does not consider domain names without a TLD valid, which are used in both docker and kubernetes, e.g. http://my-internal-api/some-path. It also doesn't allow an URL that contains an ip: http://127.0.0.1:3000 or http://localhost:3000. Both examples are very common, especially during development.

At the same time, the following url is considered valid: http://.com/

My suggestion is choose a different regex.