Google button is not working with Google Chrome

Hello,
I have added the Google+ button to the floating Sharebar and it is working fine with IE but does not work with Google Chrome. My site is http://www.insearchofwonder.com. I used the following code to add the button directly in the Sharebar settings:

<!-- Place this tag where you want the +1 button to render. -->
<div class="g-plusone" data-size="tall"></div>

<!-- Place this tag after the last +1 button tag. -->
<script type="text/javascript">
  (function() {
    var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true;
    po.src = 'https://apis.google.com/js/plusone.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s);
  })();
</script>

Any idea why this is not working properly in Google Chrome?

Thanks,
Justin

http://wordpress.org/plugins/sharebar/