I\'m reading over this page and it says that if a site is SSL and the user tries to access it via regular http, the application should not redirect the user to https. It sho
From technical perspective, IMO there are no side affect besides what HTTPS takes.
From UX/UI perspective, it is advised to use click-through or delayed redirection, providing visual indication to ask people typing HTTPS URL at the first place, since the redirection itself is subject to MITM attack. Not many HTTPS website do this however, because they provide visuals asking people to look for the lock icon on the browser on their HTTPS pages.