Click on "login with Facebook" does nothing


It used to work days ago but I've just checked and it's not working anymore :
when I click on "login with Facebook", no pop-up shows up.
I guess it's a javascript issue.

I thnk the problem here is related :

Any idea ?

I think this kind of Facebook javascript issues is really common : any way you could help us to prevent them from happening ? A special plug-in dedicated to loading Facebook javascript, perhaps ?

Besy Regards,