Translate label - Perspective

I’m trying to translate labels in a Perspective view, but it doesn’t seem to work. I use a dropdown to choose between English and French, and his value is related to session.props.locale. I enter all translation into Translation Manager and it’s related.
This is in designer:

This is in browser:

So my dropdown don’t change the session.props.locale language, but for some reason my view is in French when in my designer session.props.locale is set to English. Someone help me :sweat_smile: