2 files changed, 8 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/http/upload.rb b/actionpack/lib/action_dispatch/http/upload.rb
index c4a915d1ad..ce8c2729e9 100644
--- a/actionpack/lib/action_dispatch/http/upload.rb
+++ b/actionpack/lib/action_dispatch/http/upload.rb
@@ -17,7 +17,7 @@ module ActionDispatch
       end
 
       # Delegate these methods to the tempfile.
-      [:open, :path, :rewind, :size].each do |method|
+      [:open, :path, :rewind, :size, :eof?].each do |method|
         class_eval "def #{method}; @tempfile.#{method}; end"
       end