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- 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');
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