Trying to use jade blocks with roots.cx. I have two views here: index.jade and register/index.jade. This results in index.html and register/index.html. However, both pages did not substitute blocks correctly; they have no title and no content (they only display the static h1 prewritten in layout.jade). What could be the problem?

index.jade

// root index.jade
extends layout

block head
  title Home | My Wonderful Site

block content
  h1 Welcome to the home page
  p Lorem ipsum dolor sit amet, consectetur adipiscing elit.

layout.jade

html
  head
    block head
  body
    h1 It's working if you can see content below:
    block content

main.coffee

layouts:
  default: 'layout.jade' # tried changing to index.jade; didn't work

register_index.jade

// note: Github Gist doesn't allow subfolders
// this would normally be in /register/index.jade

// register index.jade
extends layout

block head
  title Register | My Wonderful Site

block content
  h1 Register for the event!
  p Lorem ipsum dolor sit amet, consectetur adipiscing elit.