Hello,
We noticed on our site since the last major 6.0.xx update that the mini cart has a cache issue when the site is using WP Rocket. Previously WP Rocket seemed to work well with the mini-cart and the WooCommerce “cart-fragments” were cached with no issue. This I imagine really helped speed up page loads for non-logged in users.
However since your update the mini-cart does not clear properly. For example if you delete a product from the mini cart, the mini cart count (number of items in cart graphic) does not update to show this change.
The only work around is to install the WP Rocket plugin found here which deactivates the refresh cart fragment caching: https://docs.wp-rocket.me/article/1436-mini-cart-cached-already-has-product-in-it
Now I undertsand the Cart Fragment issue is a long standing WooCommerce page load speed problem (talked about many times in forums!) but the question is why as of your 6.0.xx major update can WP Rocket no longer cache the refresh cart fragments like before? Something you did must have changed the way the mini cart operates. OK we have a solution, in that we have to make sure the refresh cart fragments are no longer cached (via the extra plugin I showed you), but it was a great page speed booster being able to cache those cart fragments via WP Rocket!
Anyhow, interested to hear your thoughts. Can you also tell me how you prevent issues on your demo site. Do you have that WP Rocket plugin loaded on your test site which disables refresh cart fragment cache?
Thanks!
.
