发现部分资源无法加载如下操作：
修改文件C:\Windows\System32\drivers\etc\hosts
添加
104.16.242.72 prod-edx-edxapp.edx.org
104.16.239.72 prod-edx-edxapp-assets.edx-cdn.org
104.16.242.72 prod-edxapp.edx-cdn.org
104.16.241.72 prod-discovery.edx-cdn.org
104.16.70.157 edx-video.net
104.16.71.157 prod-images.edx-video.net
104.16.238.72 profile-images.edx-cdn.org
如下：