title: Apexchart does not update dynamically using axios
body: <p>The updateSeries function does not seem to work. I can't find out why it doesn't though. The uChart() function does indeed get called. I have the following code:</p>
  
  <pre><code>&lt;template&gt;
  &lt;div&gt;
      &lt;Menu&gt;&lt;/Menu&gt;
      &lt;h1&gt; Our Home Website! &lt;/h1&gt;
  
      &lt;apexchart ref="chart1" width="500" type="line" :options="options" :series="series"&gt;&lt;/apexchart&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p></p>
  
  <p>
      import Menu from './Menu'
      import axios from 'axios'</p>
  
  <pre><code>export default {
      name: 'Home',
      components: {
          'Menu': Menu
      },
      data: function () {
          return {
              options: {
                  chart: {
                      height: 350,
                      type: 'bar',
                      id: 'chart'
                  },
                  dataLabels: {
                      enabled: false
                  },
                  series: [],
                  title: {
                      text: 'Ajax Example',
                  },
                  noData: {
                      text: 'Loading...'
                  }
              }
          }
      },
      mounted: function () {
          this.uChart()
      },
      methods: {
          uChart: function() {
              axios
                  .get('http://my-json-server.typicode.com/apexcharts/apexcharts.js/yearly')
                  .then(function (response) {
                      this.$refs.chart1.updateSeries([{
                          name: 'Sales',
                          data: response.data
                      }])
                  });
              console.log(this.$refs.chart1);
          }
      }
  </code></pre>
  
  <p>The reference to the chart works as well as the link for the JSON data. But the chart remains on the "loading" state.:
  <a href="https://i.stack.imgur.com/4Z4r9.png" rel="nofollow noreferrer">This is how it actually looks like on the website and the errors that I get</a></p>