/**
  * Load html into the manipulator.
  *
  * @param string      $buffer  HTML buffer.
  * @param string|bool $charset Encoding Charset. If false encoding is ignored. If not set the dom charset is used.
  *
  * @return $this
  */
 public function loadHtml($buffer, $charset = 'UTF-8')
 {
     $this->document = $this->converter->parseHtml($buffer, $charset);
     return $this;
 }