[Bug] not working at node 17

Checks

• I understand project setup issues should be asked on StackOverflow or in GitHub Discussions.
• I updated to latest http-proxy-middleware.

Describe the bug (be clear and concise)

use the library to proxy into another service. not working when upgraded to node 17.

Step-by-step reproduction instructions

1. using node 14.17 - works.
2. replace node 17.x - doesn't work.

console error:

[HPM] Error occurred while proxying request localhost:3000/aaa/ to http://localhost:3001/ [ECONNREFUSED] 

### Expected behavior (be clear and concise)

proxy should work and return the data from another proxied service

### How is http-proxy-middleware used in your project?

```shell
└── http-proxy-middleware@2.0.2

What http-proxy-middleware configuration are you using?

{
    target,
    changeOrigin: true,
    headers: {
      tenant,
    },
  }

What OS/version and node/version are you seeing the problem?

System:
    OS: macOS 12.1
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
    Memory: 492.53 MB / 16.00 GB
    Shell: 5.8 - /bin/zsh
  Binaries:
    Node: 17.4.0 - ~/.nvm/versions/node/v17.4.0/bin/node
    Yarn: 1.22.4 - /usr/local/bin/yarn
    npm: 8.3.1 - ~/.nvm/versions/node/v17.4.0/bin/npm
    Watchman: 2021.10.18.00 - /usr/local/bin/watchman
  Managers:
    CocoaPods: 1.10.1 - /Users/XXX/.rvm/rubies/ruby-head/bin/pod
    Homebrew: 3.3.9 - /usr/local/bin/brew
    pip3: 21.2.4 - /usr/local/bin/pip3
    RubyGems: 2.7.6 - /Users/XXX/.rvm/rubies/ruby-head/bin/gem
  Utilities:
    CMake: 3.16.4 - /usr/local/bin/cmake
    Make: 3.81 - /usr/bin/make
    GCC: 4.2.1 - /usr/bin/gcc
    Git: 2.32.0 - /usr/bin/git
    Clang: 13.0.0 - /usr/bin/clang
  Servers:
    Apache: 2.4.51 - /usr/sbin/apachectl
  Virtualization:
    Docker: 20.10.12 - /usr/local/bin/docker
  SDKs:
    iOS SDK:
      Platforms: DriverKit 21.2, iOS 15.2, macOS 12.1, tvOS 15.2, watchOS 8.3
  IDEs:
    Nano: 2.0.6 - /usr/bin/nano
    Vim: 8.2 - /usr/bin/vim
    WebStorm: 2021.3.1
    Xcode: 13.2.1/13C100 - /usr/bin/xcodebuild
  Languages:
    Bash: 3.2.57 - /bin/bash
    Perl: 5.30.3 - /usr/bin/perl
    Python: 2.7.18 - /usr/bin/python
    Python3: 3.9.7 - /usr/local/bin/python3
    Ruby: 2.6.0 - /Users/XXX/.rvm/rubies/ruby-head/bin/ruby
  Databases:
    MongoDB: 4.2.1 - /usr/local/bin/mongo
    PostgreSQL: 14.0 - /usr/local/bin/postgres
    SQLite: 3.36.0 - /usr/bin/sqlite3
  Browsers:
    Chrome: 97.0.4692.99
    Firefox: 57.0.4
    Safari: 15.2

Additional context (optional)

No response

[treysis]

You shouldn’t be using localhost but 127.0.0.1 instead. Reason is that name resolution for localhost varies a lot between different systems and implementations of their network stacks.

[treysis]

Looks like Node v17+ changed to way localhost is being looked-up

Yes, partly. It just doesn’t reorder the DNS results anymore. That’s what we said all the time. The lookup works the same as before. Don’t use the DNS flag as it will prevent IPv6-connectivity. Just instead of localhost use 127.0.0.1.