message: chore(fetchReader): actually return the response of the reader
diff: @@ -31,7 +31,7 @@ export class FetchUrlReader implements UrlReader {
  }
  if (response.ok) {
  - return Buffer.from('');
  + return Buffer.from(await response.text());
  }
  const message = `could not read ${url}, ${response.status} ${response.statusText}`;
  