anchor.diff:    We also copy the `hero-detail.component.ts` and the `hero.service.ts` files
     into the `heroes/` folder.
   
  -  When were done organizing, we have three *Hero Management* files:
  +  When we're done organizing, we have three *Hero Management* files:
   
   .filetree
     .file app/heroes
  
positive.code:   in the `<head>` of the `index.html`.
  +makeExample('router/ts/index.html','base-href')(format=".")
  :marked
    Without that tag, the browser may not be be able to load resources
    (images, css, scripts) when "deep linking" into the app.
    Bad things could happen when someone pastes an application link into the
    browser's address bar or clicks such a link in an email link.
  
negative.code:   * passing optional information in [query parameters](#query-parameters)
    * choosing the "HTML5" or "hash" [URL style](#browser-url-styles)
  
    We proceed in phases marked by milestones building from a simple two-pager with placeholder views
    up to a modular, multi-view design with child routes.
    
    Try that [live final version](/resources/live-examples/router/ts/plnkr.html).
  