This 2015 news announcement seems to say that there is indeed a line now running to Casa-Port from the airport. But neither my French nor Google Translate are very trustworthy. So, I'm not quite sure.
➠ Can one take a tramway from the airport to the city?
- If so, how?
- Where is the station relative to the airport?
- What is the cost?
- What methods of payment?
- How often does it run, and what hours?
- How easy is it to figure out? Is there only a single tramway line running, so no way to get on the wrong one?