Bug Description

While static files are served correctly and static root displays file tree view as expected, static subpaths are not displaying file trees - they are redirecting to invalid relative URLs.

How to Reproduce

Mopsgamer/gofiber-static-browse-repro - everything you need.

git clone https://github.com/Mopsgamer/gofiber-static-browse-repro.git
cd gofiber-static-browse-repro
go run app-repro.go

2. Open localhost:3000/static.

3. Click js. Expect seeing file tree with "index.js" file.

Expected Behavior

Clicking js on the /static page should open /static/js route, which shows "index.js".

Unfortunately, it redirects to /js/.

Fiber Version

v3.0.0-beta.5

Code Snippet (optional)

Checklist:

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• I have checked for existing issues that describe my problem prior to opening this one.
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