javascript - Backbone fetch 在 IE9 及更低版本中不起作用

Question

所以我下面的应用程序进行 ajax 调用并使用 Backbone 解析请求。除 ie9 及以下版本外，所有浏览器都可以完美运行。我似乎无法弄清楚问题是什么以及为什么它在 IE9 及更低版本中的 fetch() 上似乎总是失败。

任何帮助将不胜感激!

    window.ScheduleApp = {
        Models: {},
        Collections: {},
        Views: {}
    };

    window.template = function(id) {
        return _.template($('#' + id).html());
    };

    //Define the Game Model.
    ScheduleApp.Game = Backbone.Model.extend({
        initialize: function() {
            this.gameId = this.get('Id');
            this.gameTime = this.get('Time');
        }
    });

    //Define the Games Collection that contains Game Models.
    ScheduleApp.Games = Backbone.Collection.extend({
        model: ScheduleApp.Game
    });

    //Define the Day Model.
    ScheduleApp.Day = Backbone.Model.extend({
        initialize: function() {
            this.games = new ScheduleApp.Games(this.get('Games'));
            this.games.parent = this;
            this.gameDayDate = this.get('Date');
        }
    });

    //Define the Days Collection that contains the Day Models.
    ScheduleApp.Days = Backbone.Collection.extend({
        model: ScheduleApp.Day,
        url: function() {
            return '//domain/jsonfile.json'
        },
        parse: function(data) {
            var parsedSchedule = JSON.parse('[' + data + ']');
            console.log(parsedSchedule);
            return parsedSchedule;

        }
    });

    ScheduleApp.DayCollectionView = Backbone.View.extend({
        el: '.container', //Container where the views get rendered to.

        initialize: function() {
            this.listenTo(this.collection, 'reset', this.render);
        },
        render: function(event) {

            //Cycle through collection of each day.
            this.collection.each(function(day) {
                console.log(day);

                var dayView = new ScheduleApp.DayView({
                    model: day
                });

                this.$el.append(dayView.render().el);

            }, this);
            return this;
        }
    });

    ScheduleApp.DayView = Backbone.View.extend({
        tagName: 'div', 
        className: 'game-date', 
        template: _.template($("#gameDaySchedule").html(), this.model), 
        initialize: function() {
            this.listenTo(this.model, "reset", this.render);
        },
        render: function() {
            this.$el.html(this.template(this.model.toJSON()));
            return this;
        }
    });

    var daysList = new ScheduleApp.Days();

    daysList.fetch({
        reset: true,
        update: true,
        cache: false,
        success: function(collection, response) {
            console.log(collection);
        },
        error: function(model, resp) {
            console.log('error arguments: ', arguments);
            console.log("error retrieving model");
        }

    });

    //create new collection view.
    var daysCollectionView = new ScheduleApp.DayCollectionView({
        collection: daysList
    });

Answer 1

这解决了我遇到的问题。事实证明，这是我获取 json 时发出的跨域请求。

https://github.com/victorquinn/Backbone.CrossDomain