:javascript

document.addEventListener('DOMContentLoaded', function() {
        // load redirect details
        var el = document.location;
        var url = el.href.replace(el.protocol + '//' + el.host + el.pathname, '');
        url = url.replace('?redirect=', '');
        document.getElementById('url_redirect').value = url;
});

%div

%form(action="/login" method="post")
        %h2 Login (Username/Password)
        %input(type="text" name="username")
        %input(name="password" type="password")
        %input#url_redirect(type="hidden" name="url_redirect" value="")
        %input(type="submit" value="Log In")