带有brightcove的videojs在React组件中使用require.ensure给出错误

Question

我正在尝试在反应组件中使用require.ensure:

componentDidMount() {
    require.ensure([], () => {
        require('public/jscripts/brightcove/index.js');
    });
}

但不断收到错误: Cannot set property 'default' of undefined

它发生在brightcove videojs脚本中的这一点:

// At this point, `window.videojs` will be the earliest-defined copy of this
// version of videojs.
var videojs = window.videojs;

// https://github.com/videojs/video.js/issues/2698
videojs['default'] = videojs;

有谁知道为什么会发生这种情况？

完整的脚本在这里顺便说一句,我把它保存为本地文件,因此路径public/jscripts/brightcove/index.js:https://players.brightcove.net/1752604059001/B1xXFuBodW_default/index.js