    public function onRefresh()
    {
        $value = post($this->getFieldName());
        $previewHtml = $this->safe
            ? Markdown::parseSafe($value)
            : Markdown::parse($value);

        if ($this->shouldCleanHtml()) {
            $previewHtml = Html::clean($previewHtml);
        }

        return [
            'preview' => $previewHtml
        ];
    }
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.