title: Cant get data from intlTelInput
body: <p>Im trying to get extension from intlTelInput plugin on submit, but for some reason it returns empty. Here is an example: <a href="https://jsfiddle.net/msfk6top/" rel="nofollow noreferrer">https://jsfiddle.net/msfk6top/</a></p>
  
  <p>And the code:</p>
  
  <pre><code>&lt;link rel="stylesheet" href="https://intl-tel-input.com/node_modules/bootstrap/dist/css/bootstrap.min.css?7"&gt;
  &lt;link rel="stylesheet" href="https://intl-tel-input.com/node_modules/intl-tel-input/build/css/intlTelInput.css?37"&gt;
  
  &lt;form id="my_form"&gt;
      &lt;input name="phone" type="tel" id="phone" class="form-control"&gt;
      &lt;input type="submit"&gt;
  &lt;/form&gt;
  
  &lt;!-- use old jquery so demo works in IE --&gt;
  &lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"&gt;&lt;/script&gt;
  &lt;script src="https://intl-tel-input.com/node_modules/intl-tel-input/build/js/intlTelInput.js?60"&gt;&lt;/script&gt;
  
  &lt;script&gt;
      $("#phone").intlTelInput();
  
      $("#my_form").submit(function () {
          alert($("#phone").intlTelInput("getExtension"));
      });
  &lt;/script&gt;
  </code></pre>
  
  <p>Any idea why its not returning the chosen extension?</p>