Create code to download .pdf files to be stored on the cloud

function downloadPDF () {
    let url = 'https://example.com/pdf/download'
    return fetch(url)
      .then(response => response.blob())
        .then(data => {
          var file = new Blob([data], {type: 'application/pdf'});
          var fileURL = URL.createObjectURL(file);
          window.open(fileURL);
        })
      })
}