The snippet provided in this document was designed to render using Liquid syntax. If a theme’s product form is in HTML, you will need to update this to Liquid in order for the snippet to render properly.
HTML form example
<form action="/cart/add" method="post" data-productid=" {{ product.id }}" class="addtocartForm">
To be converted to Liquid
{%- form 'product', product, data-productid: product.id, class: 'addtocartForm' -%}
Note: The form product takes care of adding action=”/cart/add” and method=”post” automatically to the generated HTML.
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