currentURL is not defined

The way I found at the moment to fix that was disabling the ajax from checkout

/** Disable Ajax Call from WooCommerce added in functions.php*/
add_action( 'wp_enqueue_scripts', 'dequeue_woocommerce_cart_fragments', 11); 
function dequeue_woocommerce_cart_fragments() { if (is_front_page()) wp_dequeue_script('wc-cart-fragments'); }
function disable_checkout_script(){
wp_dequeue_script( 'wc-checkout' );
}
add_action( 'wp_enqueue_scripts', 'disable_checkout_script' );