Substitute XHR for auto form action redirects?

[shannonjensen]

Everything looks great, although as I'm sure you know, feeding the user to a new page to read the login/signup error isn't ideal. Especially since you are doing a single page application without the need for redirecting to a different html page, you can write an XHR request instead like you did with logout and then feed the errors to an html element

I'm sure you guys already knew this but otherwise looks really good.