private function modify_dom( $html ) {

		$dom = llms_get_dom_document( $html );
		if ( is_wp_error( $dom ) ) {
			return $html;
		}

		// Don't throw or log warnings.
		$libxml_state = libxml_use_internal_errors( true );

		// Remove all <scripts>.
		$scripts = $dom->getElementsByTagName( 'script' );
		while ( $scripts && $scripts->length ) {
			$scripts->item( 0 )->parentNode->removeChild( $scripts->item( 0 ) );
		}

		// Remove the admin bar (if found).
		$admin_bar = $dom->getElementById( 'wpadminbar' );
		if ( $admin_bar ) {
			$admin_bar->parentNode->removeChild( $admin_bar ); // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
		}

		$this->modify_dom_links( $dom );
		$this->modify_dom_images( $dom );

		// Hide print stuff (this is faster than traversing the dom to remove the element).
		$header = $dom->getElementsByTagName( 'head' )->item( 0 );
		$header->appendChild( $dom->createELement( 'style', '.no-print { display: none !important; }' ) );

		$html = $dom->saveHTML();

		// Handle errors.
		libxml_clear_errors();

		// Restore.
		libxml_use_internal_errors( $libxml_state );

		return $html;

	}