refresh checkout on session expiry

refresh checkout on session expiry

/**
 * If update_order_review returns and woocommerce_cart_hash cookie is not found → refresh checkout once.
 */
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

add_action( 'wp_footer', 'keep_wc_session_refresh_script', 20 );

function keep_wc_session_refresh_script() {
	if ( ! function_exists( 'is_checkout' ) || ! is_checkout() || is_wc_endpoint_url( 'order-received' ) ) {
		return;
	}
	?>
	<script>
	(function($) {
		var done = 'wc_checkout_refresh_done';
		$(document).ajaxComplete(function(e, xhr, s) {
			if ( sessionStorage.getItem(done) === '1' ) return;
			if ( ! s || ! s.url || s.url.indexOf('update_order_review') === -1 ) return;
			var m = document.cookie.match( /(?:^|; )woocommerce_cart_hash=([^;]*)/ );
			if ( ! m || ! m[1] ) {
				sessionStorage.setItem(done, '1');
				window.location.reload();
			}
		});
	})(jQuery);
	</script>
	<?php
}