implicit val NodeSeqUnmarshaller = new Unmarshaller[NodeSeq] {
    def apply(entity: HttpEntity) = Right {
      entity match {
        case HttpEntity.NonEmpty(contentType, data) ⇒
          val parser = XML.parser
          try {
            parser.setProperty("http://apache.org/xml/properties/locale", java.util.Locale.ROOT)
          } catch {
            case e: org.xml.sax.SAXNotRecognizedException ⇒ // property is not needed
          }

          XML.withSAXParser(parser).load(new InputStreamReader(new ByteArrayInputStream(data.toByteArray), contentType.charset.nioCharset))
        case HttpEntity.Empty ⇒ NodeSeq.Empty
      }
    }
  }