By default, WooCommerce does not display the cart product list on its Cart Widget, while the user is browsing through the Cart or Checkout pages.
In order to display the Cart products, you will have to copy and paste the code below in your child theme’s functions.php file:
function filter_woocommerce_widget_cart_is_hidden( $is_cart ) { return false; }; add_filter( 'woocommerce_widget_cart_is_hidden', 'filter_woocommerce_widget_cart_is_hidden', 10, 1 );