Upgrading react-scripts from 3.2.0 to 3.4.0 will cause routing URL behave differently when "homepage" is set in Dev mode

Describe the bug

Upgrading react-scripts from 3.2.0 to 3.4.0 will cause routing URL behave differently when “homepage” is set in Dev mode.

With hompage:"/my/dir" set in my package.json and using React router component <Link to="/about">About</Link> to do the routing, different version will have different behavior on the url generated in <a href="xxx"> :

v3.2.0 -> <a href="/about"> v3.4.0 -> <a href="/my/dir/about">

But it seems to be only affecting dev version of the application, production build is always pointing to <a href="/my/dir/about">

Did you try recovering your dependencies?

Yes

Which terms did you search for in User Guide?

homepage, react-scripts, 3.4.0, change log

Environment

(paste the output of the command here.)

Steps to reproduce

(Write your steps here:)

1. install react-scripts 3.2.0
2. set homepage:"/my/dir" in package.json
3. add <Link to="/about">About</Link> from react-router to the project
4. npm start
5. inspect this element in browser, it will have different href in different react-scripts version v3.2.0 -> <a href="/about"> v3.4.0 -> <a href="/my/dir/about">

Expected behavior

Should behave the same as the previous version.

Actual behavior

Inspect this element in browser, it will have different href in different react-scripts version v3.2.0 -> <a href="/about"> v3.4.0 -> <a href="/my/dir/about">

Reproducible demo

(Paste the link to an example project and exact instructions to reproduce the issue.)

[jamesplease]

This comment may help you @tkforce

[stale[bot]]

This issue has been automatically closed because it has not had any recent activity. If you have a question or comment, please open a new issue.