HTTP Streams don't stream data for me

public async void streamGame()
    {
        var client = new HttpClient();
        client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", "apiToken");

        Debug.Log("Starting");
        string json = "";

        int count = 0;

        using (Stream response = await client.GetStreamAsync($"https://lichess.org/api/board/game/stream/gHsBvpVYMuur"))
        {
            var line = new List<char>();

            while (true)
            {
                var nextByte = response.ReadByte();
                if (nextByte == -1)
                {
                    break;
                }
                line.Add(Char.ConvertFromUtf32(nextByte)[0]);
                if (nextByte == '\n')
                {
                    json += string.Join("", line);
                    Debug.Log(json);
                    count++;
                    gameId.text = count.ToString();
                    line.Clear();

                    if (json.Length == 1)
                    {
                        continue;
                    }
                }
            }
            Debug.Log(json);
            Debug.Log("Finished");
        }
    }