1.JS File Downloader
https://www.npmjs.com/package/js-file-downloader

<script src="/path/to/js-file-downloader.min.js"></script>
<script>
  // Then somewhere in your code
  new jsFileDownloader({ url: 'https://cdn.apedesign.net/github/logo.png' })
    .then(function () {
      // Called when download ended
    })
    .catch(function (error) {
      // Called when an error occurred
    });
</script>