Is there an existing issue for this?

• I have searched the existing issues

Can the issue be reproduced with the default theme (daylight/midnight)?

• I was able to reproduce the issue with the default theme

Could the issue be due to extensions?

• I've ruled out the possibility that the extension is causing the problem.

Describe the problem

1. 网络伺服，在 firefox 中打开
2. 点击引用块弹出浮窗
3. 点击浮窗关闭

报错如下
Uncaught TypeError: t.highlight.markHL is undefined
i_ http://127.0.0.1:6806/stage/build/desktop/main.0e0a0b0fc1fd82607234.js:1037

Expected result

正常关闭

Screenshot or screen recording presentation

No response

Version environment

- Version: v3.1.15
- Operating System: 
- Browser (if used):firefox

Log file

none

More information

No response