By default, the cart will show automatically when an item is added. However, this behavior can be changed.
When installing Snipcart, you must add a <div id="snipcart"> with your API key:
<div id="snipcart" data-api-key="API_KEY" hidden></div>
You can add the data-config-add-product-behavior attribute to change the behavior, to make sure the cart doesn’t show automatically, use this:
<div id="snipcart"
data-api-key="API_KEY"
data-config-add-product-behavior="none"
hidden></div>
Documentation can be found here.
This can also be done in v1 and v2, please refer to this part of our documentation.