"application/vnd.cinderella",
				"application/vnd.cirpack.isdn-ext",
				"application/vnd.claymore",
				"application/vnd.clonk.c4group",
				"application/vnd.commerce-battelle",
				"application/vnd.commonspace",
				"application/vnd.contact.cmsg",
				"application/vnd.cosmocaller",
				"application/vnd.crick.clicker",
				"application/vnd.crick.clicker.keyboard",
				"application/vnd.crick.clicker.palette",

      sink.write(boundaryByteString)
      sink.write(CRLF)

      if (headers != null) {
        for (h in 0 until headers.size) {
          sink
            .writeUtf8(headers.name(h))
            .write(COLONSPACE)
            .writeUtf8(headers.value(h))
            .write(CRLF)
        }
      }

      val contentType = body.contentType()
      if (contentType != null) {
        sink