return buildString {
      append(name)
      append('=')
      append(value)

      if (persistent) {
        if (expiresAt == Long.MIN_VALUE) {
          append("; max-age=0")
        } else {
          append("; expires=").append(Date(expiresAt).toHttpDateString())
        }
      }

      if (!hostOnly) {
        append("; domain=")
        if (forObsoleteRfc2965) {