Jquery UI 1.8.6 Autocomplete Bug - JSONP + Custom Data - Blowsie

Jquery UI 1.8.6 Autocomplete Bug - JSONP + Custom Data

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.6/jquery-ui.js"></script>
<div class="ui-widget">
  <label for="city">Your city: </label>
  <input id="city">
  Powered by <a href="http://geonames.org">geonames.org</a>
</div>
 
<div class="ui-widget" style="margin-top:2em; font-family:Arial">
  Result:
  <div id="log" style="height: 200px; width: 300px; overflow: auto;" class="ui-widget-content"></div>
</div>

CSS

.ui-autocomplete-loading {
    background: white url("images/ui-anim_basic_16x16.gif") right center no-repeat;
  }
  #city { width: 25em; }

JavaScript

$(function() {
    function log( message ) {
      $( "<div>" ).text( message ).prependTo( "#log" );
      $( "#log" ).scrollTop( 0 );
    }
 
    $( "#city" ).autocomplete({
      source: function( request, response ) {
        $.ajax({
          url: "http://dev.markitondemand.com/MODApis/Api/v2/Lookup/json?",
          dataType: "jsonp",
          data: {
            input: request.term
          },
          success: function( data ) {
            var c = [];
            console.log(data)
                $.each(data.results, function (i, a) {
                  var s.label = a.Symbol + " : " + a.Name;
                  c.push(s);
                });
                response(c);
          }
        });
      },
      minLength: 3,
      select: function( event, ui ) {
        log( ui.item ?
          "Selected: " + ui.item.label :
          "Nothing selected, input was " + this.value);
      },
      open: function() {
        $( this ).removeClass( "ui-corner-all" ).addClass( "ui-corner-top" );
      },
      close: function() {
        $( this ).removeClass( "ui-corner-top" ).addClass( "ui-corner-all" );
      }
    });
  });