public static function load($html) {
    $document = <<<EOD
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head>
<body>!html</body>
</html>
EOD;
    // PHP's \DOMDocument serialization adds extra whitespace when the markup
    // of the wrapping document contains newlines, so ensure we remove all
    // newlines before injecting the actual HTML body to be processed.
    $document = strtr($document, ["\n" => '', '!html' => $html]);

    $dom = new \DOMDocument();
    // Ignore warnings during HTML soup loading.
    @$dom->loadHTML($document);

    return $dom;
  }