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Editing File: /home/maglabs/it/lib/web/mage/msie/file-reader.js

/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
define([
    'jquery'
], function ($) {
    'use strict';

/**
     * Init "readAsBinaryString" function for FileReader class.
     * It need for IE11
     * @param {Blob} fileData
     */
    var readAsBinaryStringIEFunc = function (fileData) {
        var binary = '',
            self = this,
            reader = new FileReader();

/**
         * Read file as binary string
         */
        reader.onload = function () {
            var bytes, length, index;

/* eslint-disable no-undef */
            bytes = new Uint8Array(reader.result);
            /* eslint-enable */
            length = bytes.length;

for (index = 0; index < length; index++) {
                binary += String.fromCharCode(bytes[index]);
            }
            //self.result  - readonly so assign binary
            self.content = binary;
            $(self).trigger('onload');
        };
        reader.readAsArrayBuffer(fileData);
    };

if (typeof FileReader.prototype.readAsBinaryString === 'undefined') {
        FileReader.prototype.readAsBinaryString = readAsBinaryStringIEFunc;
    }
});

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