Cloudflare worker proxy object storage image

proxy.js

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

async function handleRequest(request) {
  const hiddenImageOrigin = "s3 url without trailing shash"
  const requestURL = new URL(request.url)
  // Append the request path such as "/assets/image1.jpg" to the hiddenImageOrigin.
  // You could also process the path to add or remove directories, modify filenames, etc.
  const imageURL = hiddenImageOrigin + requestURL.pathname;
  // This will fetch image from the given URL, but to the website's visitors this
  // will appear as a response to the original request. Visitor’s browser will
  // not see this URL.
  return fetch(imageURL)
}