3 files changed, 9 insertions, 3 deletions
diff --git a/actionpack/lib/action_dispatch/http/response.rb b/actionpack/lib/action_dispatch/http/response.rb
index 84732085f0..078229efd2 100644
--- a/actionpack/lib/action_dispatch/http/response.rb
+++ b/actionpack/lib/action_dispatch/http/response.rb
@@ -51,12 +51,13 @@ module ActionDispatch # :nodoc:
     # If a character set has been defined for this response (see charset=) then
     # the character set information will also be included in the content type
     # information.
-    attr_accessor :charset, :content_type
+    attr_accessor :charset
+    attr_reader   :content_type
 
     CONTENT_TYPE = "Content-Type".freeze
     SET_COOKIE   = "Set-Cookie".freeze
     LOCATION     = "Location".freeze
- 
+
     cattr_accessor(:default_charset) { "utf-8" }
 
     include Rack::Response::Helpers
@@ -83,6 +84,10 @@ module ActionDispatch # :nodoc:
       @status = Rack::Utils.status_code(status)
     end
 
+    def content_type=(content_type)
+      @content_type = content_type.to_s
+    end
+
     # The response code of the request
     def response_code
       @status
diff --git a/actionpack/lib/action_dispatch/middleware/static.rb b/actionpack/lib/action_dispatch/middleware/static.rb
index 63b7422287..9073e6582d 100644
--- a/actionpack/lib/action_dispatch/middleware/static.rb
+++ b/actionpack/lib/action_dispatch/middleware/static.rb
@@ -39,6 +39,7 @@ module ActionDispatch
     end
 
     def escape_glob_chars(path)
+      path.force_encoding('binary') if path.respond_to? :force_encoding
       path.gsub(/[*?{}\[\]]/, "\\\\\\&")
     end
   end
diff --git a/actionpack/lib/action_dispatch/testing/assertions/response.rb b/actionpack/lib/action_dispatch/testing/assertions/response.rb
index 094cfbfc76..a5e7a8c715 100644
--- a/actionpack/lib/action_dispatch/testing/assertions/response.rb
+++ b/actionpack/lib/action_dispatch/testing/assertions/response.rb
@@ -83,7 +83,7 @@ module ActionDispatch
             refer
           else
             @controller.url_for(fragment)
-          end.gsub(/[\r\n]/, '')
+          end.gsub(/[\0\r\n]/, '')
         end
     end
   end