1 files changed, 6 insertions, 6 deletions
diff --git a/actionpack/lib/action_dispatch/middleware/static.rb b/actionpack/lib/action_dispatch/middleware/static.rb
index bc5ef1abc9..b098ea389f 100644
--- a/actionpack/lib/action_dispatch/middleware/static.rb
+++ b/actionpack/lib/action_dispatch/middleware/static.rb
@@ -13,14 +13,14 @@ module ActionDispatch
   # located at `public/assets/application.js` if the file exists. If the file
   # does not exist, a 404 "File not Found" response will be returned.
   class FileHandler
-    def initialize(root, cache_control)
+    def initialize(root, cache_control, index: 'index')
       @root          = root.chomp('/')
       @compiled_root = /^#{Regexp.escape(root)}/
       headers        = cache_control && { 'Cache-Control' => cache_control }
       @file_server = ::Rack::File.new(@root, headers)
+      @index = index
     end
 
-
     # Takes a path to a file. If the file is found, has valid encoding, and has
     # correct read permissions, the return value is a URI-escaped string
     # representing the filename. Otherwise, false is returned.
@@ -32,7 +32,7 @@ module ActionDispatch
       return false unless path.valid_encoding?
       path = Rack::Utils.clean_path_info path
 
-      paths = [path, "#{path}#{ext}", "#{path}/index#{ext}"]
+      paths = [path, "#{path}#{ext}", "#{path}/#{@index}#{ext}"]
 
       if match = paths.detect { |p|
         path = File.join(@root, p.force_encoding('UTF-8'))
@@ -104,9 +104,9 @@ module ActionDispatch
   # produce a directory traversal using this middleware. Only 'GET' and 'HEAD'
   # requests will result in a file being returned.
   class Static
-    def initialize(app, path, cache_control=nil)
+    def initialize(app, path, cache_control = nil, index: 'index')
       @app = app
-      @file_handler = FileHandler.new(path, cache_control)
+      @file_handler = FileHandler.new(path, cache_control, index: index)
     end
 
     def call(env)
@@ -114,7 +114,7 @@ module ActionDispatch
       when 'GET', 'HEAD'
         path = env['PATH_INFO'].chomp('/')
         if match = @file_handler.match?(path)
-          env["PATH_INFO"] = match
+          env['PATH_INFO'] = match
           return @file_handler.call(env)
         end
       end