https://developers.weixin.qq.com/miniprogram/dev/api/file/wx.openDocument.html
win10 专业版 1909 pc端在打开文档时白屏
System: Unknown, WeChat 7.0.9.501
Network: wifi
UA: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.143 Safari/537.36 MicroMessenger/7.0.9.501 NetType/WIFI MiniProgramEnv/Windows WindowsWechat
WeChatLib: 2.13.2 (2020.12.29 20:58:08)
这是一个已知问题，我们会在后续版本中进行改善