public static function get_subscribed_events() {
    return [
        'rocket_saas_is_home_url'                      => [ 'detect_homepage', 10, 2 ],
        'rocket_has_i18n'                              => 'is_translatepress',
        // ... other events
        'rocket_current_url'                           => 'adjust_current_url',
    ];
}

public static function get_subscribed_events() {
    return [
        'rocket_saas_is_home_url'                      => [ 'detect_homepage', 10, 2 ],
        'rocket_has_i18n'                              => 'is_translatepress',
        // ... other events
        'rocket_current_url'                           => 'adjust_current_url',
        'rocket_buffer'                                => [ 'clean_hreflang_query_strings', 1000 ],
    ];
}

public function clean_hreflang_query_strings( $buffer ) {
    $ignored_params = rocket_get_ignored_parameters();

    if ( empty( $ignored_params ) ) {
        return $buffer;
    }

    $pattern = '/<link\s+[^>]*hreflang=["\'][^>]*>/i';

    return preg_replace_callback(
        $pattern,
        function ( $matches ) use ( $ignored_params ) {
            $tag     = $matches[0];
            $cleaned = $this->remove_ignored_params_from_href( $tag, $ignored_params );
            return $cleaned;
        },
        $buffer
    );
}

private function clean_url_query_string( $url, $ignored_params ) {
    $parsed_url = wp_parse_url( $url );

    if ( ! isset( $parsed_url['query'] ) ) {
        return $url;
    }

    wp_parse_str( $parsed_url['query'], $query_params );
    $query_params = array_diff_key( $query_params, array_flip( $ignored_params ) );
    $cleaned_query = http_build_query( $query_params );

    if ( empty( $cleaned_query ) ) {
        // Rebuild URL without query string
        return $base_url;
    }

    // Rebuild URL with cleaned query string
    return $new_url;
}