SSL CA root certificates for Let's Encrypt and StartSSL have been added for BOT API callback URL.
See the "Note" in the Registering a callback URL section to find a link to the full list of authorized CAs.
SSL CA root certificates for Let's Encrypt and StartSSL have been added for BOT API callback URL.
See the "Note" in the Registering a callback URL section to find a link to the full list of authorized CAs.