Avoid copying global style presets via the styles compatibility hook (#…

…52640)
WordPress · Jul 18, 2023 · c13d613 · c13d613
1 parent cbe67e3
commit c13d613
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/packages/block-editor/src/components/iframe/use-compatibility-styles.js b/packages/block-editor/src/components/iframe/use-compatibility-styles.js
@@ -45,6 +45,11 @@ export function useCompatibilityStyles() {
 					return accumulator;
 				}
 
+				// Don't try to add styles without ID. Styles enqueued via the WP dependency system will always have IDs.
+				if ( ! ownerNode.id ) {
+					return accumulator;
+				}
+
 				function matchFromRules( _cssRules ) {
 					return Array.from( _cssRules ).find(
 						( {