Untitled

<title>WFS</title>
    <link rel="stylesheet" href="https://openlayers.org/en/v4.6.5/css/ol.css" type="text/css">
    <script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"></script>
    <script src="https://openlayers.org/en/v4.6.5/build/ol.js"></script>
  </head>
  <body>
    <div id="map" class="map"></div>
    <script>
      var vectorSource = new ol.source.Vector({
        format: new ol.format.GeoJSON(),
        url: function(extent) {
 'bbox=' + extent.join(',') + ',EPSG::4326';
          return 'http://10.41.66.11:6080/arcgis/services/Mobile/WFS_Test/MapServer/WFSServer?request=GetFeature&service=WFS&outputFormat=esrigeojson&typeNames=Mobile_WFS_Test:TESIS2.D_DIREK_OG';
        },
        strategy: ol.loadingstrategy.bbox
      });


      var vector = new ol.layer.Vector({
        source: vectorSource,
        style: new ol.style.Style({
          stroke: new ol.style.Stroke({
            color: 'rgba(0, 0, 255, 1.0)',
            width: 2
          })
        })
      });

      var map = new ol.Map({
        layers: [vector], //raster,
        target: document.getElementById('map'),
        view: new ol.View({
          center: [28.51234567, 41.072437216],//,
          //center: [0, 0],
          maxZoom: 500,
          zoom: 12
        })
      });
    </script>

Uncaught TypeError: (0 , Sq[a.type]) is not a function
at Rq (ol.js:557)
at Qq.k.dd (ol.js:560)
at Qq.k.Mg (ol.js:561)
at Qq.k.Qa (ol.js:474)
at U.<anonymous> (ol.js:472)