<!DOCTYPE html>
<input type="number" min="0" value="4" />
<script src='http://code.jquery.com/jquery-latest.min.js'></script>
<script src="http://afarkas.github.io/webshim/js-webshim/minified/polyfiller.js">
<script>
webshim.polyfill('forms forms-ext');
</script>