This page is served by the @butterbase/static-frontend-worker
package running inside Miniflare locally — the same workerd
runtime that serves *.butterbase.dev in production.
Drop your SPA's dist/ contents into the directory mounted at
LOCAL_FRONTEND_ASSETS_DIR and the worker will serve them with
the same SPA fallback semantics prod uses.
Path served:
Try a deep path that doesn't exist — the SPA fallback should return this page with status 200:
curl -sI http://localhost:8787/some/deep/route