URL: https://oauth.telegram.org/auth/push
Browser / Version: Firefox Mobile 68.0
Operating System: Android
Tested Another Browser: Yes
Problem type: Site is not usable
Description: Can't login with Telegram with Firefox Preview
Steps to Reproduce:
Clicked on the Telegram Login button, entered my phone number, authorized the login through Telegram and got a "Invalid bot domain" message
The message usually appears when you're trying to login to a different website than the one configured with https://t.me/BotFather/ ; maybe Firefox is not redirecting correctly?

Browser Configuration
From webcompat.com with ❤️
URL: https://oauth.telegram.org/auth/push
Browser / Version: Firefox Mobile 68.0
Operating System: Android
Tested Another Browser: Yes
Problem type: Site is not usable
Description: Can't login with Telegram with Firefox Preview
Steps to Reproduce:
Clicked on the Telegram Login button, entered my phone number, authorized the login through Telegram and got a "Invalid bot domain" message
The message usually appears when you're trying to login to a different website than the one configured with https://t.me/BotFather/ ; maybe Firefox is not redirecting correctly?

Browser Configuration
From webcompat.com with ❤️