cant exclude img class

Hi,

I really like your plugin, great work!

One thing, I’m unable to exclude a certain image class from being lazy loaded.
attachment-shop_thumbnail size-shop_thumbnail wp-post-image

I copied this class from the img and added it to the lazy load exception but it still runs lazy load on the images. do you have any idea?
It’s the class created for the preview images by woocommerce cart tab when a product is within the cart.

thanks

https://www.ads-software.com/plugins/lazy-load-xt/