From 489d48a119477e44022e9a3939332bdcc6cc94aa Mon Sep 17 00:00:00 2001
From: Andrew Serong <14988353+andrewserong@users.noreply.github.com>
Date: Thu, 15 Dec 2022 15:02:03 +1100
Subject: [PATCH] Global Styles REST API endpoint: check custom CSS is included
 before attempting to validate (#46561)

* Global Styles REST API endpoint: check custom CSS is included before attempting to validate

* Fix linting issue
---
 ...ass-gutenberg-rest-global-styles-controller-6-2.php | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/lib/compat/wordpress-6.2/class-gutenberg-rest-global-styles-controller-6-2.php b/lib/compat/wordpress-6.2/class-gutenberg-rest-global-styles-controller-6-2.php
index 9f762dd961d058..684786ef22d762 100644
--- a/lib/compat/wordpress-6.2/class-gutenberg-rest-global-styles-controller-6-2.php
+++ b/lib/compat/wordpress-6.2/class-gutenberg-rest-global-styles-controller-6-2.php
@@ -151,10 +151,12 @@ protected function prepare_item_for_database( $request ) {
 		if ( isset( $request['styles'] ) || isset( $request['settings'] ) ) {
 			$config = array();
 			if ( isset( $request['styles'] ) ) {
-				$config['styles']    = $request['styles'];
-				$validate_custom_css = $this->validate_custom_css( $request['styles']['css'] );
-				if ( is_wp_error( $validate_custom_css ) ) {
-					return $validate_custom_css;
+				$config['styles'] = $request['styles'];
+				if ( isset( $request['styles']['css'] ) ) {
+					$validate_custom_css = $this->validate_custom_css( $request['styles']['css'] );
+					if ( is_wp_error( $validate_custom_css ) ) {
+						return $validate_custom_css;
+					}
 				}
 			} elseif ( isset( $existing_config['styles'] ) ) {
 				$config['styles'] = $existing_config['styles'];