diff --git a/actionpack/lib/action_controller/caching.rb b/actionpack/lib/action_controller/caching.rb
index 159a1ba14e..5b5cdaa2e3 100644
--- a/actionpack/lib/action_controller/caching.rb
+++ b/actionpack/lib/action_controller/caching.rb
@@ -114,10 +114,10 @@ module ActionController #:nodoc:
         return unless perform_caching
         if options[:action].is_a?(Array)
           options[:action].dup.each do |action|
-            self.class.expire_page(url_for(options.merge({ :only_path => true, :action => action })))
+            self.class.expire_page(url_for(options.merge({ :only_path => true, :skip_relative_url_root => true, :action => action })))
           end
         else
-          self.class.expire_page(url_for(options.merge({ :only_path => true })))
+          self.class.expire_page(url_for(options.merge({ :only_path => true, :skip_relative_url_root => true })))
         end
       end
 
@@ -126,7 +126,7 @@ module ActionController #:nodoc:
       #   cache_page "I'm the cached content", :controller => "lists", :action => "show"
       def cache_page(content = nil, options = {})
         return unless perform_caching && caching_allowed
-        self.class.cache_page(content || @response.body, url_for(options.merge({ :only_path => true })))
+        self.class.cache_page(content || @response.body, url_for(options.merge({ :only_path => true, :skip_relative_url_root => true })))
       end
 
       private
diff --git a/actionpack/lib/action_controller/url_rewriter.rb b/actionpack/lib/action_controller/url_rewriter.rb
index e79ac4daa1..4313340892 100644
--- a/actionpack/lib/action_controller/url_rewriter.rb
+++ b/actionpack/lib/action_controller/url_rewriter.rb
@@ -2,7 +2,7 @@ module ActionController
   # Rewrites URLs for Base.redirect_to and Base.url_for in the controller.
 
   class UrlRewriter #:nodoc:
-    RESERVED_OPTIONS = [:anchor, :params, :only_path, :host, :protocol, :trailing_slash]
+    RESERVED_OPTIONS = [:anchor, :params, :only_path, :host, :protocol, :trailing_slash, :skip_relative_url_root]
     def initialize(request, parameters)
       @request, @parameters = request, parameters
     end
@@ -23,7 +23,7 @@ module ActionController
         rewritten_url << (options[:protocol] || @request.protocol) unless options[:only_path]
         rewritten_url << (options[:host] || @request.host_with_port) unless options[:only_path]
 
-        rewritten_url << @request.relative_url_root.to_s
+        rewritten_url << @request.relative_url_root.to_s unless options[:skip_relative_url_root]
         rewritten_url << path
         rewritten_url << '/' if options[:trailing_slash]
         rewritten_url << "##{options[:anchor]}" if options[:anchor]