Block: Load viewStyle in the head tag when wp_should_load_block_assets_on_demand is false

Author: t-hamano

src/wp-includes/class-wp-block.php

@@ -617,7 +617,8 @@ public function render( $options = array() ) {
 			}
 		}
 
-		if ( ( ! empty( $this->block_type->view_style_handles ) ) ) {
+		// Only enqueue if not already enqueued by wp_enqueue_registered_block_scripts_and_styles.
+		if ( ( ! empty( $this->block_type->view_style_handles ) ) && wp_should_load_block_assets_on_demand() ) {
 			foreach ( $this->block_type->view_style_handles as $view_style_handle ) {
 				wp_enqueue_style( $view_style_handle );
 			}

src/wp-includes/script-loader.php

@@ -2696,6 +2696,11 @@ function wp_enqueue_registered_block_scripts_and_styles() {
 			wp_enqueue_style( $style_handle );
 		}
 
+		// Front-end styles.
+		foreach ( $block_type->view_style_handles as $view_style_handle ) {
+			wp_enqueue_style( $view_style_handle );
+		}
+
 		// Front-end and editor scripts.
 		foreach ( $block_type->script_handles as $script_handle ) {
 			wp_enqueue_script( $script_handle );