I have encountered that in Magento 2.2.6 “Clear Shopping Cart” button is not working on cart page.

I have found out that in vendor/magento/module-checkout/view/frontend/templates/cart/form.phtml -line 27, Magento Team seems missed to put a dot for the ‘action’ classname.

<table id="shopping-cart-table"
class="cart items data table"
data-mage-init='{"shoppingCart":{"emptyCartButton": "action.clear",
"updateCartActionContainer": "#update_cart_action_container"}}'>

Replace above code with below code:

<table id="shopping-cart-table"
class="cart items data table"
data-mage-init='{"shoppingCart":{"emptyCartButton": ".action.clear",
"updateCartActionContainer": "#update_cart_action_container"}}'>

It’s a small bug that creates a big problem.

Hopefully, this will be fixed in next release.