middleman/middleman-core/fixtures/clean-app/config.rb

page "/fake.html", proxy: "/real.html", layout: false

ignore "/should_be_ignored.html"
page "/should_be_ignored2.html", ignore: true
page "/target_ignore.html", proxy: "/should_be_ignored3.html", ignore: true

%w(one two).each do |num|
  page "/fake/#{num}.html", proxy: "/real/index.html" do
    @num = num
  end
end