@wfp/react/config/polyfills.js

WFP UI Kit

'use strict';

if (typeof Promise === 'undefined') {
  // Rejection tracking prevents a common issue where React gets into an
  // inconsistent state due to an error, but it gets swallowed by a Promise,
  // and the user has no idea what causes React's erratic future behavior.
  require('promise/lib/rejection-tracking').enable();
  window.Promise = require('promise/lib/es6-extensions.js');
}

// fetch() polyfill for making API calls.
require('whatwg-fetch');

// Object.assign() is commonly used with React.
// It will use the native implementation if it's present and isn't buggy.
Object.assign = require('object-assign');

// Starting with React 16, we'll have to polyfill this in test environments.
// Defining this earlier than loading Enzyme to avoid "React depends on requestAnimationFrame" warning.
global.requestAnimationFrame = function(callback) {
  callback();
};