title: Woocommerce update checkout ajax
body: <p>As i'm using a onepager for 1 product i'd like to make use of wordpress ajax to update the checkout on site, when i'm adding the product to the cart. The product add to cart button is already ajax.</p>
  
  <p>I have tried the: <code>$('body').trigger('update_checkout');</code>, but it didnt work. It's inside an .on click function. I suspect that the checkout updater runs before the add to cart can get to save and therefore doesn't have anything to read from. This is just a theory though. </p>
  
  <p>How do i go about this?</p>