message: fix: ensure credentials are send per default
diff: @@ -10,7 +10,7 @@ const defaultHeaders = {
  function fetch(uri, userHeaders) {
  const headers =
  - userHeaders === false ? {} : merge({}, userHeaders, defaultHeaders);
  + userHeaders === false ? defaultHeaders : merge({}, userHeaders, defaultHeaders);
  return global.fetch(uri, headers);
  }
  