Shoe form issue

index.html

<script src="/bundle.js"></script>
<div id="result"></div>

<form method="post" enctype="multipart/form-data" action="http://www.anything2pdf.com//">
<input type="hidden" name="MAX_FILE_SIZE" value="100000000">
<p><strong>Select file:</strong></p>
<p><input type="file" name="document" style="width:220px"></p>
<p align="center"><input type="submit" value="Generate PDF!" id="button"></p>
</form>