* Server-side rendering of the `core/shortcode` block.
* Performs wpautop() on the shortcode block content.
* @param array $attributes The block attributes.
* @param string $content The block content.
* @return string Returns the block content.
function render_block_core_shortcode( $attributes, $content ) {
return wpautop( $content );
* Registers the `core/shortcode` block on server.
function register_block_core_shortcode() {
register_block_type_from_metadata(
'render_callback' => 'render_block_core_shortcode',
add_action( 'init', 'register_block_core_shortcode' );