Endpoint wildcard proxy wildcard

[johakoch]

Fixed endpoint wildcard/proxy wildcard combination where wildcard matches "":

  endpoint "/**" {
    proxy {
      backend {
        origin = "http://localhost:8081"
        path = "/**"
      }
    }
  }

  endpoint "/a/**" {
    proxy {
      backend {
        origin = "http://localhost:8081"
        path = "/b/**"
      }
    }
  }

before:

• request GET / -> backend request GET /**
• request GET /a -> backend request GET /b/**

now:

• request GET / -> backend request GET /
• request GET /a -> backend request GET /b

---

BTW, without

        path = "/**"

in the first endpoint, the backend request path was ok.

Non-empty-matches were ok, too:

• request GET /c -> backend request GET /c
• request GET /a/c -> backend request GET /b/c

---

Reviewer checklist

• Read PR description: a summary about the changes is required
• Changelog updated
• Documentation: docs/{Reference, Cli, ...}, Docker and cli help/usage
• Pulled branch, manually tested
• Verified requirements are met
• Reviewed the code
• Reviewed the related tests

[johakoch]

I'll rebase to release.1.11