3 files changed, 3 insertions, 5 deletions
diff --git a/actionpack/lib/action_dispatch/http/content_security_policy.rb b/actionpack/lib/action_dispatch/http/content_security_policy.rb
index 4883e23d24..ffac3b8d99 100644
--- a/actionpack/lib/action_dispatch/http/content_security_policy.rb
+++ b/actionpack/lib/action_dispatch/http/content_security_policy.rb
@@ -172,7 +172,7 @@ module ActionDispatch #:nodoc:
     end
 
     def build(context = nil)
-      build_directives(context).compact.join("; ") + ";"
+      build_directives(context).compact.join("; ")
     end
 
     private
diff --git a/actionpack/lib/action_dispatch/http/mime_type.rb b/actionpack/lib/action_dispatch/http/mime_type.rb
index d2b2106845..295539281f 100644
--- a/actionpack/lib/action_dispatch/http/mime_type.rb
+++ b/actionpack/lib/action_dispatch/http/mime_type.rb
@@ -279,8 +279,6 @@ module Mime
 
     def all?; false; end
 
-    # TODO Change this to private once we've dropped Ruby 2.2 support.
-    # Workaround for Ruby 2.2 "private attribute?" warning.
     protected
 
       attr_reader :string, :synonyms
diff --git a/actionpack/lib/action_dispatch/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb
index ff6998ae31..a29a5a04ef 100644
--- a/actionpack/lib/action_dispatch/routing/route_set.rb
+++ b/actionpack/lib/action_dispatch/routing/route_set.rb
@@ -153,13 +153,13 @@ module ActionDispatch
           url_name = :"#{name}_url"
 
           @path_helpers_module.module_eval do
-            define_method(path_name) do |*args|
+            redefine_method(path_name) do |*args|
               helper.call(self, args, true)
             end
           end
 
           @url_helpers_module.module_eval do
-            define_method(url_name) do |*args|
+            redefine_method(url_name) do |*args|
               helper.call(self, args, false)
             end
           end