The Slate project does not have helper scripts for ajax carts. We have an opportunity to simplify the methods described in our Ajax API documentation for themes. The helper script to add his to that ...

add_action( 'wp_ajax_hid_ex_m_get_crypto_assets', 'hid_ex_m_get_crypto_assets' ); add_action( 'wp_ajax_nopriv_hid_ex_m_get_crypto_assets', 'hid_ex_m_get_crypto_assets ...