Cloudflare Worker to rewrite the response

cloudflare_resolver.js

async function handleRequest(req) {
  const res = await fetch(req)

  if (res.status == 404) {
    let init = {...res};
    init.status = 200;
    init.statusText = "OK";
    init.webSocket = init.webSocket || undefined;
    let response = await (new Response(res.body, init))
    console.log('overwrite status', response.status)
    return response
  }

  return res
}


addEventListener("fetch", event => {
  event.respondWith(handleRequest(event.request))
})