entry.server handleResourceRequest proposal

[gustavorino]

Having handleDataRequest and handleRequest is great, but none of them work for resource requests, I've ended up messing with the server.ts file to be able to manipulate the headers of some resource responses.

// same as handleDataRequest
export function handleResourceRequest(
  response: Response,
  {
    request,
    params,
    context,
  }: LoaderFunctionArgs | ActionFunctionArgs
) {
  response.headers.set("X-Custom-Header", "value");
  return response;
}