diff --git a/app/controllers/devise_controller.rb b/app/controllers/devise_controller.rb
index 8603b938..376b03d4 100644
--- a/app/controllers/devise_controller.rb
+++ b/app/controllers/devise_controller.rb
@@ -181,12 +181,4 @@ MESSAGE
       format.any(*navigational_formats, &block)
     end
   end
-
-  def request_format
-    @request_format ||= request.format.try(:ref)
-  end
-
-  def is_navigational_format?
-    Devise.navigational_formats.include?(request_format)
-  end
 end
diff --git a/lib/devise/controllers/helpers.rb b/lib/devise/controllers/helpers.rb
index 0c147b06..a83a77d0 100644
--- a/lib/devise/controllers/helpers.rb
+++ b/lib/devise/controllers/helpers.rb
@@ -162,8 +162,8 @@ module Devise
         users.any?
       end
 
-      # Returns and delete the url stored in the session for the given scope. Useful
-      # for giving redirect backs after sign up:
+      # Returns and delete (if it's navigational format) the url stored in the session for
+      # the given scope. Useful for giving redirect backs after sign up:
       #
       # Example:
       #
@@ -171,7 +171,12 @@ module Devise
       #
       def stored_location_for(resource_or_scope)
         scope = Devise::Mapping.find_scope!(resource_or_scope)
-        session.delete("#{scope}_return_to")
+
+        if is_navigational_format?
+          session.delete("#{scope}_return_to")
+        else
+          session["#{scope}_return_to"]
+        end
       end
 
       # The scope root url to be used when he's signed in. By default, it first
@@ -262,6 +267,14 @@ module Devise
         super # call the default behaviour which resets the session
       end
 
+      def request_format
+        @request_format ||= request.format.try(:ref)
+      end
+
+      def is_navigational_format?
+        Devise.navigational_formats.include?(request_format)
+      end
+
       private
 
       def expire_devise_cached_variables!
diff --git a/test/controllers/sessions_controller_test.rb b/test/controllers/sessions_controller_test.rb
index 3818d9cc..7af0a686 100644
--- a/test/controllers/sessions_controller_test.rb
+++ b/test/controllers/sessions_controller_test.rb
@@ -13,6 +13,34 @@ class SessionsControllerTest < ActionController::TestCase
     end
   end
 
+  test "#create delete the url stored in the session if the requested format is navigational" do
+    request.env["devise.mapping"] = Devise.mappings[:user]
+    request.session["user_return_to"] = 'foo.bar'
+
+    user = create_user
+    user.confirm!
+    post :create, :user => {
+      :email => user.email,
+      :password => user.password
+    }
+
+    assert_nil request.session["user_return_to"]
+  end
+
+  test "#create doesn't delete the url stored in the session if the requested format is not navigational" do
+    request.env["devise.mapping"] = Devise.mappings[:user]
+    request.session["user_return_to"] = 'foo.bar'
+
+    user = create_user
+    user.confirm!
+    post :create, :format => 'json', :user => {
+      :email => user.email,
+      :password => user.password
+    }
+
+    assert_equal 'foo.bar', request.session["user_return_to"]
+  end
+
   test "#create doesn't raise exception after Warden authentication fails when TestHelpers included" do
     request.env["devise.mapping"] = Devise.mappings[:user]
     post :create, :user => {
@@ -54,4 +82,4 @@ class SessionsControllerTest < ActionController::TestCase
       end
     end
   end
-end
\ No newline at end of file
+end