Please change

 <script type='text/javascript'>
    function CuteWebUI_AjaxUploader_OnTaskComplete(task)
    {
        window.location = "/complete?id=<?=$sessionkey;?>&deletekey=<?=$deletekey;?>";
    }
    </script>

to

 <script type='text/javascript'>
function CuteWebUI_AjaxUploader_OnPostback()
 {
      window.location = "/complete?id=<?=$sessionkey;?>&deletekey=<?=$deletekey;?>";
 }
 </script>

 

After done, pls try it again.

 

Thank you for asking

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