1fetch('https://cors-anywhere.herokuapp.com/' + fileURL, {
2    method: 'GET',
3    headers: {
4      'Content-Type': 'application/pdf',
5    },
6  })
7  .then((response) => response.blob())
8  .then((blob) => {
9    // Create blob link to download
10    const url = window.URL.createObjectURL(
11      new Blob([blob]),
12    );
13    const link = document.createElement('a');
14    link.href = url;
15    link.setAttribute(
16      'download',
17      `FileName.pdf`,
18    );
19
20    // Append to html link element page
21    document.body.appendChild(link);
22
23    // Start download
24    link.click();
25
26    // Clean up and remove the link
27    link.parentNode.removeChild(link);
28  });
29

1npm install --save react-download-link

1var fileDownload = require('js-file-download');
2fileDownload(data, 'filename.csv');
3