IE9错误TypeError：无法获取属性'set'的值：object为null或undefined - 试图实例化自定义dijit

Question

好的是删除了无关逻辑的dijit定义：

define([
    'dojo/_base/declare', 'dojo/on', 

    'dojo/dom-class', 'dojo/dom-attr', 'dojo/dom-style',

    'libs/bower_components/lodash/collection/where', 'libs/bower_components/lodash/collection/pluck',

    'dijit/_WidgetBase', 'dijit/_TemplatedMixin', 'dijit/_WidgetsInTemplateMixin',

    // templates & widget css
    'dojo/text!./templates/FilterableCheckedMultiSelectDD.html', 'xstyle/css!./css/FilterableCheckedMultiSelectDD.css',

    //Not Referenced
    'dijit/TooltipDialog', '../FilterableCheckedMultiSelect/FilterableCheckedMultiSelect'

], function (
    declare, on,
    domClass, domAttr, domStyle,
    where, pluck,
    _WidgetBase, _TemplatedMixin, _WidgetsInTemplateMixin,
    template, css
) {
    return declare([_WidgetBase, _TemplatedMixin, _WidgetsInTemplateMixin], {
        widgetsInTemplate: true,
        templateString: template,

        title: 'Dropdown',
        _setTitleAttr: function(newTitle){
            this._set("title", newTitle);
            this.btn.set('label', newTitle);
        }
    })
});

现在，以下工作在chrome中运行良好：

<select data-dojo-type="libs/dijits/FilterableCheckedMultiSelectDD/FilterableCheckedMultiSelectDD"
                id="section" data-dojo-attach-point="section" data-dojo-props="title:'Sections'"></select>

但它在IE9中不起作用。它会引发以下错误：

dojo/parser::parse() errorTypeError: Unable to get value of the property 'set': object is null or undefined

然后我尝试在javascript中声明它：

this.section = new FilterableCheckedMultiSelectDD({
            title: 'Sections'
        });

        domConstruct.place(this.section, 'sectionContainer');

但是它引发了同样的错误（尽管不是通过解析器）：

TypeError: Unable to get value of the property 'set': object is null or undefined 

我也尝试了这个：

this.section = new FilterableCheckedMultiSelectDD();
     this.section.set('title', 'Sections');
            domConstruct.place(this.section, 'sectionContainer');

同样的错误。

我看到了这个帖子： IE Error TypeError: Unable to get value of the property 'set': object is null or undefined

虽然错误似乎非常相似，但原因（和解决方案）似乎有很大不同。

以下是模板：

<div>
    <button class="filterable-checkbox-dd" data-dojo-attach-point="btn" data-dojo-type="dijit/form/DropDownButton">
        <span data-dojo-attach-point="label"></span>
        <div data-dojo-attach-point="contentContainer" data-dojo-type="dijit/TooltipDialog">
            <div style="width: 100%; max-height: 250px; background: #fff; overflow: auto;" data-dojo-type="dijit/layout/ContentPane" data-dojo-attach-point="ddContent">
                <select data-dojo-attach-point="multiSelect" data-dojo-type="libs/hntb/dijits/FilterableCheckedMultiSelect/FilterableCheckedMultiSelect"></select>
            </div>             
        </div>
    </button>
</div>