Files
react-native/Libraries/Network/fetch.js
T
Arthur Lee 2fe3dd2e7d Use fetch as a polyfill
Summary:
The old whatwg-fetch module doesn't actually export anything, so we would always hit the `else` condition.

The new whatwg-fetch (3.0.0, introduced in #24418) now exports an ES module. As a result, `whatwg` and `whatwg.fetch` are both truthy but the `module.exports` will end up empty. This breaks the RN fetch module.

This will switch the behavior back to the expected polyfill behavior (calling `require('whatwg-fetch')` and allowing it to polyfill fetch in global scope). The RN fetch module will re-export these globals.

Reviewed By: cpojer

Differential Revision: D15639851

fbshipit-source-id: ebd8bce85f7797d8539f53982e515ac47f6425e7
2019-06-06 11:34:11 -07:00

19 lines
429 B
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
*/
/* globals Headers, Request, Response */
'use strict';
// side-effectful require() to put fetch,
// Headers, Request, Response in global scope
require('whatwg-fetch');
module.exports = {fetch, Headers, Request, Response};