@wordpress/components/build-module/style-provider/index.js

UI components for WordPress.

import { createElement } from "@wordpress/element";

/**
 * External dependencies
 */
import { CacheProvider } from '@emotion/core';
import createCache from '@emotion/cache';
import memoize from 'memize';
const memoizedCreateCacheWithContainer = memoize(container => {
  return createCache({
    container
  });
});
export default function StyleProvider({
  children,
  document
}) {
  if (!document) {
    return null;
  }

  const cache = memoizedCreateCacheWithContainer(document.head);
  return createElement(CacheProvider, {
    value: cache
  }, children);
}
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