Changing the default language of a single portal

[Simon9]

Hey, I want to change the language of a portal, but not the whole instance.

The case is that our instance is English by default, but we would like to change the default language of just one portal. Is this possible?

[Community Alums]

Please go through this  -

https://www.servicenow.com/community/developer-forum/i-want-to-set-the-session-language-to-japanese-...

[Simon9]

While this sort of solves the problem it creates a new one. Doing this gives me the correct language on entering the portal, but now I have it selected when leaving the portal as well.

I was hoping there was a way to only have it selected when using the portal