Can you say more about this? What I understand is that browsers will eventually retry the connection without ECH (with plaintext SNI).
- In Chrome, after clicking “Reload” several times.
- In Firefox, after waiting a few minutes.
(Also reported here: “в Firefox 131 сайты с ECH открываются без ECH через минуту «загрузки» — открывается новое соединение с plain SNI, а старое закрывается.”)
Do I understand correctly about browsers falling back to non-ECH?