Cart block - Third party plugin compatibility - the price shows as "discounted" while it is not

[marcusig]

Describe the bug

When the cart item price is modified by a third party plugin and the price is different from the original, it shows as discounted, even though it is not. (see screenshot)

To reproduce

Steps to reproduce the behavior:

1. Go to https://demos.mklacroix.com/custom-laptop/
2. Select some options with an extra price
3. Add to cart
4. Visit the cart comparison page (https://demos.mklacroix.com/cart-block-vs-cart-shortcode/)

Expected behavior

Either the original price should only be displayed if there is an actual discount applied, or there should be an option to not display it.

Screenshots

Environment

WordPress (please complete the following information):

• WordPress version: 6.3
• WooCommerce version: 7.9
• WooCommerce Blocks version: 10.7.1
• Site language: EN
• Any other plugins installed: Product configurator for WooCommerce and add-ons. The Extra price add-on changes the item price.

Additional context

As the developper of the plugins mentioned above, this issue will be part of a series of issues brought forward in an effort to make them compatible with the cart and checkout blocks.

[nielslange]

Hello @marcusig,

Thanks for reaching out. I was able to reproduce this issue by adding the following snippet to my site using the Code Snippets plugin:

function calc_price( $cart_object ) {
    foreach ( $cart_object->get_cart() as $hash => $value ) {
        $value['data']->set_price( 50 );
    }
}
add_action( 'woocommerce_before_calculate_totals', 'calc_price' );

I see that this issue affects both the Cart and the Checkout block.

Cart block:

Checkout block:

I'll move this issue to our backlog now.