Webpack-dev-server 3.1.12 seems broken

[melkishengue]

• Operating System: Mac osx high Sierra
• Node Version: v 6.9.4
• NPM Version: 3.10.10
• webpack Version: 4.20.2
• webpack-dev-server Version: 3.1.12

• [x ] This is a bug
• This is a modification request

Code

  // webpack.config.js
devServer: {
    contentBase: join(__dirname, 'dist')
  }

Expected Behavior

webpack dev server should start a local dev server

Actual Behavior

Crashes with the following error:

node_modules/webpack-dev-server/lib/Server.js:654
  ).hostname;
  ^
SyntaxError: Unexpected token )
    at Object.exports.runInThisContext (vm.js:76:16)
    at Module._compile (module.js:542:28)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Applications/MAMP/htdocs/node-ts/frontend/node_modules/webpack-dev-server/bin/webpack-dev-server.js:38:16)
    at Module._compile (module.js:570:32)

npm ERR! Darwin 17.4.0
npm ERR! argv "/Users/admin/.nvm/versions/node/v6.9.4/bin/node" "/Users/admin/.nvm/versions/node/v6.9.4/bin/npm" "run" "wds"
npm ERR! node v6.9.4
npm ERR! npm  v3.10.10
npm ERR! code ELIFECYCLE
npm ERR! js-design-pattern@1.0.0 wds: `webpack-dev-server --progress --colors`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the js-design-pattern@1.0.0 wds script 'webpack-dev-server --progress --colors'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the js-design-pattern package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     webpack-dev-server --progress --colors
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs js-design-pattern
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls js-design-pattern
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /Applications/MAMP/htdocs/node-ts/frontend/npm-debug.log

For Bugs; How can we reproduce the behavior?

Installing webpack-dev-server@3.1.12 (same node version might be required)

[3846masa]

Sorry, it's my fault.
The PR I created (#1606) cannot work at Node <= 7.x.
I sent new PR for fixing.

Please use v3.1.11 until merged.