Subdomains on localhost return ENOTFOUND on some OS.

Version

Tested on v21.2.0, v20.9.0, v18.18.2

Platform

Microsoft Windows NT 10.0.19045.0 x64

Subsystem

No response

What steps will reproduce the bug?

1. run fetch("http://test.localhost/")

How often does it reproduce? Is there a required condition?

Happens on windows every time

What is the expected behavior? Why is that the expected behavior?

Expected behaviour is ECONNREFUSED or content of what the webpage contains equally to how a node on Linux, cURL or a browser would handle it

What do you see instead?

Uncaught [TypeError: fetch failed] {
  cause: Error: getaddrinfo ENOTFOUND test.localhost
      at GetAddrInfoReqWrap.onlookupall [as complete] (node:dns:118:26)
      at GetAddrInfoReqWrap.callbackTrampoline (node:internal/async_hooks:130:17) {
    errno: -3008,
    code: 'ENOTFOUND',
    syscall: 'getaddrinfo',
    hostname: 'test.localhost'
  }
}

Additional information

Recreated locally in a VM but also on an actual Windows device

首先在 Windows 上重现 fetch("http://test.localhost/")，并检查为 test.localhost 产生 ENOTFOUND 的 node:dns 解析路径。将其行为与 Linux、cURL 或浏览器进行比较，并在 Windows 的行为符合预期的 localhost 处理且有回归测试覆盖时，认为该 issue 已完成。