OpenBuilds-CONTROL/app/upload.html

<form id="uploadform" enctype="multipart/form-data">
  <input id="filename" name="file" type="file" accept=".gcode, .cnc, .tap, .nc" /></span>
  <button type="submit">Upload</button>
</form>
<script type="text/javascript" src="lib/jquery/jquery.min.js"></script>


<script>
  $('#uploadform').submit(function(e) {
    e.preventDefault();
    $.ajax({
      url: '/upload',
      type: 'POST',
      processData: false,
      contentType: false,
      cache: false,
      data: new FormData($('#uploadform')[0]),
      enctype: 'multipart/form-data',
      success: function() {
        console.log('Uploaded sucessfully');
      }
    });

  });
</script>