title: Webpack-dev-server certificate expired?
body: <p>In my webpack.config.js file, I added https configuration:</p>
  
  <pre><code>devServer: {
      historyApiFallback: true,
      contentBase: './',
      https: true
  }
  </code></pre>
  
  <p>Then I receive an error when I navigate to <a href="https://localhost:8080/" rel="nofollow">https://localhost:8080/</a></p>
  
  <pre><code>Your connection is not private
  
  Attackers might be trying to steal your information from localhost (for example, passwords, messages, or credit cards). NET::ERR_CERT_AUTHORITY_INVALID
  Subject: webpack
  Issuer: webpack
  Expires on: Dec 10, 2015
  Current date: Mar 27, 2016
  PEM encoded chain: -----BEGIN CERTIFICATE-----
  ...
  -----END CERTIFICATE----
  </code></pre>
  
  <p>It appears webpack's certificate expired. Did I configure something incorrectly? Or have I misunderstood SSL?</p>
  
  <p>I'm using</p>
  
  <pre><code>"webpack": "^1.12.9",
  "webpack-dev-server": "^1.14.1"
  </code></pre>