The upstream Maintainerr builds its Vite/React frontend with a
__PATH_PREFIX__ placeholder that gets replaced at runtime by start.sh
using the BASE_PATH env var. This sets:
- React Router's basename (createBrowserRouter)
- API base URL (axios calls)
- EventSource URLs
- Vite asset prefix
Without this replacement, React Router has an empty basename and can't
match the ingress URL (/api/hassio_ingress/<token>/), returning
"No route matches URL".
Fix: Replace __PATH_PREFIX__ in the built UI files with the HA ingress
entry before starting the app. Remove nginx sub_filters (no longer
needed since the UI files already reference the correct ingress-prefixed
URLs). Keep the nginx rewrite rule to strip the prefix on the server side.
Agent-Logs-Url: https://github.com/alexbelgium/hassio-addons/sessions/e0751563-06a4-4b4e-a4a7-63b2e5f66f03
Co-authored-by: alexbelgium <44178713+alexbelgium@users.noreply.github.com>
