Link: http://teacommerce.sheriffone.com/products.aspx
Script: http://teacommerce.sheriffone.com/scripts/Shop.js

For some reason invokeXSLT doesn't get me any HTML.

I'm pretty much using this example: http://rune.gronkjaer.dk/en-US/2010/11/16/tea-commerce-javascript-api/#invokeXSLT

The product is added and when you do a manual refresh you will see a minicart in the bottom of the screen.
But if you look in the console you'll see that the output is kinda odd.

And yes, the minicart.xslt is allowed to be used with invokeXSLT :)

My code looks like this:

/* When we add product to cart */
jQuery(".productAddToCart").live("click", function () {
   var nodeId = jQuery(this).attr('nodeid');
  /* Add orderline is called using the Tea Commerce javascript API */
    TeaCommerce.addOrderLine(nodeId, 1, false);
    return false;
});
TeaCommerce.subscribeToOnCartUpdated(function (data) {
 var cart = jQuery('#minicart');
    //Update the cart of the site
  //Fetch the new cart html with invokeXSLT and update the UI
    var cartJqHtml = jQuery(TeaCommerce.invokeXSLT('minicart.xslt', _nodeId, false));
  console.log(cartJqHtml);
   cart.after(cartJqHtml);
    //cart.remove();
});