Error when choosing a “bad password” that breaks the site creation script. Specifically it’s the & chracter. The user is allowed to enter their own password, therefore given the ability to choose a malformed password with characters that break site creation. Suggest prefilling the username and password fields like WordPress does to prevent this.
Steps to reproduce
Set up a new website
When you get to the screen to choose a WordPress admin and password, enter: 8Tn#4Pq&rX2@5Qw% for the password
The & character breaks site creation and creates an error
