title: select all values of multiple selction options - not working on E11
body: <p>i'm using a select element with multiple attributes. This only work for Firefox and Chrome but not for IE9/IE10 or IE11. Any suggestion to bring it also work for IE browsers? It looks like IE don't accept the character  => </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>text += "problems: " + Array.from(document.getElementById("pq").options)
                          .filter(option =&gt; option.selected)
                          .map(option =&gt; option.value) + "\r\n" + "\r\n";</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"&gt;&lt;/script&gt;
  &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.js"&gt;&lt;/script&gt;
  &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-multiselect/0.9.15/js/bootstrap-multiselect.min.js"&gt;&lt;/script&gt;
  &lt;link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" /&gt;
  &lt;link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-multiselect/0.9.15/css/bootstrap-multiselect.css" /&gt;
  
  &lt;form id "test"&gt;
    &lt;select multiple="multiple" id="pq"&gt;
      &lt;option id="pq1" value="Test"&gt;Test&lt;/option&gt;
      &lt;option id="pq2" value="TV"&gt;TV&lt;/option&gt;
      &lt;option id="pq3" value="Radio"&gt;Radio&lt;/option&gt;
      &lt;option id="pq4" value="Box"&gt;Box&lt;/option&gt;
      &lt;option id="pq5" value="Sound"&gt;Sound&lt;/option&gt;
      &lt;option id="pq6" value="Audio"&gt;Audio conversations&lt;/option&gt;
      &lt;option id="pq7" value="Cable"&gt;Cable&lt;/option&gt;
    &lt;/select&gt;
    &lt;button type="submit" value="Submit"&gt;Submit&lt;/button&gt;
  &lt;/form&gt;
  
  
  &lt;script&gt;
    $('select[multiple]').multiselect()
  &lt;/script&gt;</code></pre>
  </div>
  </div>
  </p>