Serving pages only from www subdomain and static assets only from static

[josevalim]

@konstantine oh, if you want to filter the serving per host, you can do this:

@my_static Plug.Static.init(your: options)
plug :filtered_static

def filtered_static(%{host: "assets.mydomain.com"} = conn, _opts), do: Plug.Statica.call(conn, @my_static)
def filtered_static(conn, _opts), do: conn