Izmjenjena struktura, dodan backand

web/node_modules/fbjs/lib/fetch.js.flow

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+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @providesModule fetch
+ */
+
+'use strict';
+
+// This hopefully supports the React Native case, which is already bringing along
+// its own fetch polyfill. That should exist on `global`. If that doesn't exist
+// then we'll try to polyfill, which might not work correctly in all environments.
+
+if (global.fetch) {
+  module.exports = global.fetch.bind(global);
+} else {
+  module.exports = require('isomorphic-fetch');
+}