Caching trpc responses when calling from edge to serverless (vercel)

[gxanshu]

Has anyone had luck caching trpc responses when making fetch calls from edge function to a serverless function (deployment on vercel). I never seem to be able to get the cache working in such setup. I'm using QwikJS

Example code snipped in the edge function:

const handler: RequestHandler = async ({
  request,
  json,
  sharedMap,
  redirect
}) => {
  const session: Session = sharedMap.get("session");
  if (!session?.user?.id) redirect(307, "/landing");
  const response = await fetchRequestHandler({
    // the endpoint handling the requests
    endpoint: "/api/trpc",
    // the request object
    req: request,
    // the router for handling the requests
    router: appRouter,
    // any arbitary data that should be available to all actions
    createContext: () => ({}),
    responseMeta(opts) {
      const { errors } = opts;
      // checking that no procedures errored
      const allOk = errors.length === 0;
      if (allOk) {
        // cache request for 1 day + revalidate once every second
        const ONE_DAY_IN_SECONDS = 60 * 60 * 24;
        return {
          headers: {
            "cache-control": `s-maxage=60, stale-while-revalidate=${ONE_DAY_IN_SECONDS}`,
          },
        };
      }
      return {};
    },
  }
  const data = await response.json();
  json(200, data);
};

export const onGet = handler;
export const onPost = handler;

when checking the vercel logs I'm aways gettint a cache MISS and I never see the cached value being returned.
Inspecting the response headers that get to edge function recieves, it looks that the cache-control is getting stripped and replaced with different value (public, max-age=0, must-revalidate)