First, run the development server:
pnpm i
pnpm devGo to http://localhost:3000. The page will load just fine, but go to the network tab of the dev console in your browser. You will notice requests to /api/health recurring every couple of milliseconds.
I intentionally did not include a loading.ts file because I prefer the behavior where it waits for the data to fetch on the server before rendering.
It is unclear if this is an issue with Next.js or @tanstack/router.