Forcibly disable ajax add to cart in WooCommerce

functions.php

<?php

/**
 * Forcibly disable ajax add to cart
 */
	add_filter( 'woocommerce_product_supports', 'yanco_disable_ajax_add_to_cart_supports', 10, 3 );
	function yanco_disable_ajax_add_to_cart_supports( $supports_ajax, $feature, $product ) {
		if ( 'ajax_add_to_cart' == $feature ) {
			$supports_ajax = false;
		}

		return $supports_ajax;
	}