问PhoneGap和主干Ajax调用需要很长时间

EN

template: _.template($('#hero-1').html()),

render: function() {
    var view = this;
    $(this.el).html(this.template(view.model.toJSON()));
},

getWeatherData: function(lat, long){
      view.weatherModel = new this.model();
      view.weatherModel.fetch({
      data: {
        longitude: lat,
        latitude: long
      },
      success: function(data) {
          view.dataReturned(data.attributes);
          view.render();
      }
    });
 },

return Backbone.Model.extend({

    url: 'http://127.0.0.1:3000/weather',       

    parse: function(response){
        console.log("Parsing Response", response);
        response.weather.currently.avgTemp = Math.round(response.weather.currently.temperature);
        return response;
    }

});

<script type="text/template" id="hero-1">
   <div id="weather-temp" class="weather-temp">
      <%= weather.currently.avgTemp %>
   </div>
</script>

$.ajax({
            type: "GET",
            crossDomain:true,
            async: false,
            contentType:"application/json; charset=utf-8",
            url:"http://127.0.0.1:3000/weather?longitude=-122.406417&latitude=37.785834",  
            success:function(data) {
               console.log('success');
               console.log(data); 
            }
         });