Tokenized ECE not able to parse selected variation w/ "Variation Swatches for WooCommerce"

[frosso]

Describe the bug

Internally reported here: p1738743947909059/1738707211.859139-slack-CGGCLBN58

The "Variation Swatches for WooCommerce" plugin alters the site's markup for the variations, causing the ECE to not be able to parse the selected variation on a product page.

This causes a Store API add-to-cart call made with incorrect values causing it to fail with woocommerce_rest_variation_id_from_variation_data, preventing the product from being able to check out within the scope of the ECE dialog.

The product can still be added to the cart via the "Add to cart" button.

ECE on cart & checkout pages remains unaffected.

To Reproduce

• Install the plugin
• Ensure you have GooglePay/ApplePay enabled
• Click on the GooglePay/ApplePay button
• Observe the add-tocart` call result

Actual behavior

Screenshots

Expected behavior

Product pages using "Variation Swatches for WooCommerce" can still add the product to the cart.

Desktop (please complete the following information):

Smartphone (please complete the following information):

Additional context