title: Why console.log dose not working in Vue.js?
body: <h1>Enviorment</h1>
  
  <p>$ node -v<br>
  v8.16.2<br>
  $ npm -v<br>
  6.4.1  </p>
  
  <pre><code>    "vue": {
        "version": "2.5.16",
        "resolved": "https://registry.npmjs.org/vue/-/vue-2.5.16.tgz",
        "integrity": "sha512-..."
      },
      "nuxt": {
        "version": "1.4.1",
        "resolved": "https://registry.npmjs.org/nuxt/-/nuxt-1.4.1.tgz",
       ...
      },
      "webpack": {
        "version": "3.12.0",
        "resolved": "https://registry.npmjs.org/webpack/-/webpack-3.12.0.tgz",
      ...
      },
      "uglifyjs-webpack-plugin": {
        "version": "0.4.6",
       ...
      }
  </code></pre>
  
  <pre><code>&lt;template&gt;
    &lt;div class="container"&gt;
      &lt;h2&gt;Complete&lt;/h2&gt;
  &lt;/div&gt;
  &lt;/template&gt;
  
  &lt;script&gt;
  import Vue from 'vue'
  
  export default {
    name: 'NuxtError',
    props: {
      error: {
        type: Object,
        default: null
      }
    },
    created() {
      console.log('created');
      nextUrl = "http://localhost:3000";
      console.log(nextUrl);
  
      ...
    }
  }
  &lt;/script&gt;
  
  
  </code></pre>
  
  <h1>Problem</h1>
  
  <p>console.log not working.</p>
  
  <h1>Try</h1>
  
  <ul>
  <li>Search "drop_console" in all source
  ->none</li>
  <li>Search "UglifyJsPlugin" in all source
  →none</li>
  <li>Write "process.env.DEBUG = 'nuxt:*'"
  →not working</li>
  </ul>
  
  <h1>Wish</h1>
  
  <p>Please tell me resolve.
  Please teach me about require code for ask.</p>
  
  <p>Thank you.</p>