Portal sidebar deep links return 404 when opened directly

[Undermybelt]

Summary

Several Portal sidebar links render as normal path URLs (for example /testnets and /metrics), but those URLs return a server-side 404 when opened directly or refreshed.

Reproduction

1. Open https://portal.genlayer.foundation/
2. Inspect/copy the sidebar links for Testnets or Metrics
   • https://portal.genlayer.foundation/testnets
   • https://portal.genlayer.foundation/metrics
3. Open either URL directly in a new tab, or request it with a plain browser/HTTP client.

Actual result

Both direct routes return 404 Not Found:

https://portal.genlayer.foundation/testnets -> HTTP 404
https://portal.genlayer.foundation/metrics  -> HTTP 404

Expected result

Direct links and refreshes should load the Portal app and route to the matching view, or the UI should expose hash routes that are directly resolvable, for example:

https://portal.genlayer.foundation/#/testnets/
https://portal.genlayer.foundation/#/metrics/

Impact

• Opening sidebar links in a new tab fails.
• Shared links to Portal sections fail.
• Refreshing a path-based route can fail depending on how the route was reached.
• Search engines/social previews may index broken section URLs.

Environment

• Browser: Chrome-compatible browser
• Date observed: 2026-05-10