Untitled

<!DOCTYPE html>

<html>
    <head>
        <title>hell</title>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
    </head>
    <body>
    <form method="post" enctype="multipart/form-data" id="updateMember">
    <input id="input-9" name="input9" type="file" class="file file-loading" data-allowed-file-extensions='["png", "jpg", "gif", "jpeg"]' style="top: 0px;">
    <li class="menu__item">
    <input name="offerUpload" id="dashOffersBtn" class="menu__link menu_input btnDashboard" style="margin: 0 auto; height:20px;padding: 0;padding-bottom: 22px;width: 70%;" type="submit" value="SAVE">
    </li>
</form>

   <script>
        jQuery('#updateMember').submit(function(e){
           e.preventDefault();
            var data = new FormData(this);
                $.ajax({
                    type: "POST",
                    url: 'upload.php',
                    data: data,
                    mimeType: "multipart/form-data",
                    contentType: false,
                    cache: false,
                    dataType: "html",
                    processData: false,
                    success: function(data) {
                        alert(data);
                    }
                });
        });
        </script>
    </body>
</html>