i'm learning js, CSS and html and i tried to make a simple login form. Wether i validate my form with the correct password or not it always sends me afterwards on a blank page. I want to stay on the same index.html webpage if the password is wrong after the alert messsage, and i want to go to the maintenance page if it is right. I don't get why i get a blank page each time. i did put a redirection on my js function.

Heres the repository https://github.com/Pecranhou/loginform

am i missing something?