Webshims and Input Type="Date" not work well

Question

it's the first time i ask your help. I'm trying to use Webshim for loading on any browser a input type=date. I use this topic: How to get HTML 5 input type="date" working in Firefox and/or IE 10 and everythings works well. But when i try to use internal references to the javascript library something goes wrong. The Code:

<script src="http://cdn.jsdelivr.net/webshim/1.12.4/polyfiller.js"></script>
    <script>
        $( document ).ready(function() {
      webshims.polyfill('forms forms-ext');

      webshims.setOptions('waitReady', false);
      webshims.setOptions('forms-ext', {types: 'date'});
    webshim.setOptions("forms-ext", {
        "date": {
            "calculateWidth": false} });
    });    
    </script>

If i use a internal library, i get this warning and nothing appears when i click on the date icon: "could not get clear text from form cfg".