[Bug]: root path spa will get redirect loop

[kunyan]

Describe the bug:

When we access the router root path, it should return the root spa
However, it will add // in the end and redirect loop

Steps to reproduce:

Expected behavior:

Root path SPA display

Screenshots:

Environment;

• Operating System(s): Linux/macOS/Windows [Variant and Version]
• Browser: Firefox/Chrome/Safari [Version] / Other (please specify)

Tell us more about your product/project and timeline to help prioritize this issue:

Additional context

[Jared-Sprague]

This is due to the changes in common flatpath. I implemented the special logic outside of the common package in router, I think we should do the same for API, or re-implement the changes in router to based on the common package changes.

[Jared-Sprague]

Caused by #361

I think a small bit of logic in router should fix this.