public function prepareHtml()
{
$html_encoding = XmlParser::getEncodingFromMetaTag($this->html);
$this->html = Encoding::convert($this->html, $html_encoding ?: $this->encoding);
$this->html = Filter::stripHeadTags($this->html);
Logger::setMessage(get_called_class() . ': HTTP Encoding "' . $this->encoding . '" ; HTML Encoding "' . $html_encoding . '"');
}