test.html

<html>

<head>


</head>

<body>

  <script>
    const download = ({
      data,
      filename
    }) => {
      const blob = new Blob([data], {
        type: "application/octet-binary"
      });
      const url = URL.createObjectURL(blob);

      const pom = document.createElement("a");
      pom.setAttribute("href", url);
      // pom.innerText = "download";
      pom.setAttribute("download", filename);
      pom.click();
    }
  </script>
</body>

</html>