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function wp_ajax_parse_media_shortcode() {
	global $post, $wp_scripts;

	if ( empty( $_POST['shortcode'] ) ) {
		wp_send_json_error();
	}

	$shortcode = wp_unslash( $_POST['shortcode'] );

	// Only process previews for media related shortcodes:
	$found_shortcodes = get_shortcode_tags_in_content( $shortcode );
	$media_shortcodes = array(
		'audio',
		'embed',
		'playlist',
		'video',
		'gallery',
	);

	$other_shortcodes = array_diff( $found_shortcodes, $media_shortcodes );

	if ( ! empty( $other_shortcodes ) ) {
		wp_send_json_error();
	}

	if ( ! empty( $_POST['post_ID'] ) ) {
		$post = get_post( (int) $_POST['post_ID'] );
	}

	// The embed shortcode requires a post.
	if ( ! $post || ! current_user_can( 'edit_post', $post->ID ) ) {
		if ( in_array( 'embed', $found_shortcodes, true ) ) {
			wp_send_json_error();
		}
	} else {
		setup_postdata( $post );
	}

	$parsed = do_shortcode( $shortcode );

	if ( empty( $parsed ) ) {
		wp_send_json_error(
			array(
				'type'    => 'no-items',
				'message' => __( 'No items found.' ),
			)
		);
	}

	$head   = '';
	$styles = wpview_media_sandbox_styles();

	foreach ( $styles as $style ) {
		$head .= '<link type="text/css" rel="stylesheet" href="' . $style . '">';
	}

	if ( ! empty( $wp_scripts ) ) {
		$wp_scripts->done = array();
	}

	ob_start();

	echo $parsed;

	if ( 'playlist' === $_REQUEST['type'] ) {
		wp_underscore_playlist_templates();

		wp_print_scripts( 'wp-playlist' );
	} else {
		wp_print_scripts( array( 'mediaelement-vimeo', 'wp-mediaelement' ) );
	}

	wp_send_json_success(
		array(
			'head' => $head,
			'body' => ob_get_clean(),
		)
	);
}