21 lines
841 B
JavaScript
21 lines
841 B
JavaScript
if (typeof Promise === "undefined") {
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// Rejection tracking prevents a common issue where React gets into an
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// inconsistent state due to an error, but it gets swallowed by a Promise,
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// and the user has no idea what causes React's erratic future behavior.
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require("promise/lib/rejection-tracking").enable();
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window.Promise = require("promise/lib/es6-extensions.js");
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}
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// fetch() polyfill for making API calls.
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require("whatwg-fetch");
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// Object.assign() is commonly used with React.
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// It will use the native implementation if it's present and isn't buggy.
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Object.assign = require("object-assign");
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// In tests, polyfill requestAnimationFrame since jsdom doesn't provide it yet.
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// We don't polyfill it in the browser--this is user's responsibility.
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if (process.env.NODE_ENV === "test") {
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require("raf").polyfill(global);
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}
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