Could you please give me a hint on the strikes today and tommorow in Paris?

Would you let me know if RER B, from Orly to CDG, will be affected by the strikes? It is an urgent situation, since it is a flight that is endangered and as the routes by car are a chaos, I believe the train would be the most reliable transport.

Please give me a hint as soon as possible so I can get in planned before leaving tommorrow.

Thank you very much in advance.
Kind Regards,