[Backport] Fix empty cart button

[luukschakenraad]

Description (*)

This commit fixes the empty cart button on the cart page. It was not working because of the selector in 'app/code/Magento/Checkout/view/frontend/web/js/shopping-cart.js:17':

$(this.options.emptyCartButton).on('click', $.proxy(function () {
                $(this.options.emptyCartButton).attr('name', 'update_cart_action_temp');
                $(this.options.updateCartActionContainer)
                    .attr('name', 'update_cart_action').attr('value', 'empty_cart');
            }, this));

this.options.emptyCartButton is set in app/code/Magento/Checkout/view/frontend/templates/cart/form.phtml:27:

data-mage-init='{"shoppingCart":{"emptyCartButton": "action.clear",

That selector should be .action.clear instead of action.clear to be able to select the empty-cart-button

Fixed Issues (if relevant)

#18589: Empty cart button does not work

Manual testing scenarios (*)

1. Add a product to your cart
2. Go to the cart page
3. In the developer-console of your browser run jQuery('.action.clear').show(); to show the default "empty cart button"
4. Click the button "Clear shopping Cart"
5. The cart should now be cleared

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

Original PR

#18596

[magento-engcom-team]

Hi @luukschakenraad. Thank you for your contribution
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[luukschakenraad]

@rogyar I see the status has changed to "On Hold". Anything I can help you with?

[rogyar]

Hi @luukschakenraad. We can backport a feature/fix only after the changes are merged into mainline (2.3-develop). So this PR is on hold until the original PR is open

[magento-engcom-team]

Hi @luukschakenraad. Thank you for your contribution.
We will aim to release these changes as part of 2.2.8.
Please check the release notes for final confirmation.

Please, consider to port this solution to 2.3 release line.
You may use Porting tool to port commits automatically.