Issues with create-react-app and uglify about better-xlsx HOT 1 CLOSED

import React, { Component } from 'react';
import xlsx from 'better-xlsx/dist/xlsx';
import FileSaver from 'file-saver';

class App extends Component {
  save() {
    const file = new xlsx.File();
    const sheet = file.addSheet('Sheet1');
    const row = sheet.addRow();
    const cell = row.addCell();

    cell.value = 'I am a cell!';
    cell.hMerge = 2;
    cell.vMerge = 1;

    cell.style.fill.patternType = 'solid';
    cell.style.fill.fgColor = '00FF0000';
    cell.style.fill.bgColor = 'FF000000';
    cell.style.align.h = 'center';
    cell.style.align.v = 'center';

    file.saveAs('blob').then((content) => {
      FileSaver.saveAs(content, "example.xlsx");
    });
  }
  render() {
    return (
      <div className="App">
        <button onClick={() => this.save()}>Download</button>
      </div>
    );
  }
}