title: Autocomplete shows only message N results are available, use up and down arrow keys to navigate. instead show list
body: <p>my problem is clear.</p>
  
  <p>I'm using jquery autocomplete and i don't know why it shows me only the message:</p>
  
  <pre><code>9 results are available, use up and down arrow keys to navigate.
  </code></pre>
  
  <p>Without showing me the list of result.</p>
  
  <p>This is my code:</p>
  
  <pre><code>&lt;p class="select-c"&gt;
       &lt;label for="fcb"&gt;Location&lt;/label&gt;
       &lt;input id="fcb" name="fcb" type="text"&gt;                        
  &lt;/p&gt;
  
  
  $("#fcb").autocomplete({
          source: function (request, response) {
              $.ajax({
                  type: "GET",
                  dataType: 'json',
                  url: "../ws/city/" + request.term,
                  async: true,
                  success: function( data ) {
                      response( $.map( data, function( item,key ) {
                          return {
                              label: key,
                              value: item.id_town+"#"+item.id_province
                          }
                      }));
                  },
                  error: function (result) {
                      alert("Due to unexpected errors we were unable to load data");
                  }
              });
          },
          minLength: 2
      });
  </code></pre>
  
  <p>with results like:</p>
  
  <p><img src="https://i.stack.imgur.com/DNdpV.png" alt="enter image description here"></p>
  
  <p>What could be the problem??</p>