Add an early bail before setting password protected option if the fai…

…led page is the checkout

includes/validate.php

@@ -146,6 +146,14 @@ function edac_validate( $post_ID, $post, $action ) {
 	do_action( 'edac_after_get_content', $post_ID, $content, $action );
 
 	if ( ! $content['html'] ) {
+		// The woocommerse checkout page will always be a redirect when it has no items. The redirect
+		// will cause the content to be empty.
+		// TEMPORARY FIX: Just return without setting this as a password protected page. In future we
+		// will need to fix this properly by adding a product to the cart before checking.
+		if ( edac_check_if_post_id_is_woocommerse_checkout_page( $post_ID ) ) {
+			return;
+		}
+
 		update_option( 'edac_password_protected', true );
 		return;
 	} else {