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- /**
- * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
- */
- /* globals window */
- 'use strict';
- /**
- * An ES6 compatible Promise class, used for deferred and asynchronous computations.
- *
- * @class Promise
- */
- CKEDITOR.define( function() {
- // For now we're using the native browser implementation of Promise, an ES6 feature. Just IE is not supporting it so
- // a polyfill will have to be developed for it.
- //
- // http://caniuse.com/#feat=promises
- /* istanbul ignore next: we expect this to never happen for now, so we'll not have coverage for this */
- if ( !window.Promise ) {
- throw 'The Promise class is not available natively. CKEditor is not compatible with this browser.';
- }
- return window.Promise;
- } );
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