How to debug Vercel cache misses with tRPC?

export default createNextApiHandler({
  router: appRouter,
  createContext: createTrpcContext,
  responseMeta: (opts) => {
    const { paths, errors, type } = opts;

    if (
      paths &&
      paths.every((path) => path === "tournaments.getTournamentInternal") &&
      errors.length === 0 &&
      type === "query"
    ) {
      return {
        headers: { "cache-control": `max-age=0, s-maxage=30` },
      };
    }

    return {};
  },
  onError:
    env.NODE_ENV === "development"
      ? ({ path, error }) => {
          console.error(`❌ tRPC failed on ${path}: ${error}`);
        }
      : undefined,
});