Title: WP_Theme_JSON::remove_insecure_inner_block_styles
Published: February 24, 2026

---

# WP_Theme_JSON::remove_insecure_inner_block_styles( array $blocks ): array

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wp_theme_json/remove_insecure_inner_block_styles/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wp_theme_json/remove_insecure_inner_block_styles/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wp_theme_json/remove_insecure_inner_block_styles/?output_format=md#source)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_theme_json/remove_insecure_inner_block_styles/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wp_theme_json/remove_insecure_inner_block_styles/?output_format=md#wp--skip-link--target)

Remove insecure styles from inner blocks and their elements.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wp_theme_json/remove_insecure_inner_block_styles/?output_format=md#parameters)󠁿

 `$blocks`arrayrequired

The block styles to process.

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wp_theme_json/remove_insecure_inner_block_styles/?output_format=md#return)󠁿

 array Sanitized block type styles.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wp_theme_json/remove_insecure_inner_block_styles/?output_format=md#source)󠁿

    ```php
    protected static function remove_insecure_inner_block_styles( $blocks ) {
    	$sanitized = array();
    	foreach ( $blocks as $block_type => $block_input ) {
    		$block_output = static::remove_insecure_styles( $block_input );

    		if ( isset( $block_input['elements'] ) ) {
    			$block_output['elements'] = static::remove_insecure_element_styles( $block_input['elements'] );
    		}

    		$sanitized[ $block_type ] = $block_output;
    	}
    	return $sanitized;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-wp-theme-json.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/class-wp-theme-json.php#L3662)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/class-wp-theme-json.php#L3662-L3674)

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wp_theme_json/remove_insecure_inner_block_styles/?output_format=md#changelog)󠁿

| Version | Description | 
| [6.8.0](https://developer.wordpress.org/reference/since/6.8.0/) | Introduced. |

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