Theophile G

Thank you for your answer but It's not really helping, I can't ask people using my website to do that. It needs to be fixed in this app.

Actually, I noticed that once I click the "add to calendar icon" it open the atc webpage and then ios ask "this website try to show you a calendar invitaion,...

Do you mean the

Thank you but It does not change anything on my side. The issue occurs on iOS with Safari for instance

thank you a thousand times @damianvila that works perfectly ! you made my day

great!!!