Diverge Metal implementation from Rack::Cascade since we want the last app to return its headers and body if the status is a 404.

1 files changed, 0 insertions, 31 deletions

diff --git a/railties/lib/rails/rack/cascade.rb b/railties/lib/rails/rack/cascade.rb
deleted file mode 100644
index d5af7fc77e..0000000000
--- a/railties/lib/rails/rack/cascade.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-require 'active_support/ordered_hash'
-
-module Rails
-  module Rack
-    # Try a request on several apps; return the first non-404 response.
-    class Cascade
-      attr_reader :apps
-
-      def initialize(apps)
-        @apps = ActiveSupport::OrderedHash.new
-        apps.each { |app| add app }
-      end
-
-      def call(env)
-        @apps.keys.each do |app|
-          result = app.call(env)
-          return result unless result[0].to_i == 404
-        end
-        Metal::NotFoundResponse
-      end
-
-      def add(app)
-        @apps[app] = true
-      end
-
-      def include?(app)
-        @apps.include?(app)
-      end
-    end
-  end
-end