ETag and Cache-Control Headers Not Working in Remix? | Remix | Page 1

I'm having trouble with setting the ETag and Cache-Control headers in my Remix application. Despite configuring them in my code, they don't seem to be set when I make a request.

Here's the relevant part of my code:

const data = {
  term,
  collection,
  result,
  resultWithoutFacetValueFilters,
  facetValueIds,
  appliedPaginationLimit,
  appliedPaginationPage,
};

const etag = createETag(data);

return json(data, {
  headers: {
    'Cache-Control': 'public, max-age=18000', // 5 hours
    'ETag': etag,
  }
});

When I use curl to send a request or make a request from the browser, the Cache-Control and ETag headers are not present in the response. Can anyone help me understand why this is happening and how I can fix it?

#ETag and Cache-Control Headers Not Working in Remix?