Twitch login page displays on multiple languages "OAuth Security" page is not set in English as default

We have tried the following "&language=en

to the end of your auth URL to set the language to English" and we still get the same issue as explained above^ - Any other suggestions, thanks in advance!

this is the url we request to twitch:
https://api.twitch.tv/kraken/oauth2/authorize?client_id=r62ryboyyhzbfs3ng6lln92w2op3wdz&redirect_uri=https%3A%2F%2Fboom.tv%2Foauth%2Fcallback&scope=user_read+channel_read+channel_subscriptions+user_subscriptions+channel_check_subscription+chat_login&response_type=code&state=S1jbQaAurDzHpgetWEFVDJHLgoSBGMXZcaMDezSk&language=en&force_verify=true

then twitch will redirect browser to this URL:

https://passport.twitch.tv/authentications/new?client_id=04greyplbsknr18sfe86x6t0prl02s&force_verify=true&language=en&nonce=7ac33a2bdbc77e85863a0d109396355fde3d0a06&redirect_uri=https%3A%2F%2Fbeta.boom.tv%2Foauth%2Fcallback&requesting_client_id=04greyplbsknr18sfe86x6t0prl02s&response_type=code&scope=user_read+channel_subscriptions+user_subscriptions+channel_check_subscription+chat_login&state=ibQmvt54x5PUssCHFdnGOwnkq7Z9rzzpCjcqbVQY

Note: We think maybe the problem is in the second url
we send them request with language=en
but in the second url (the url Twitch generates itself), they don’t keep that option anymore