Return true from head method

It was returning false in normal circumstances.
This broke the `head :ok and return if` construct.
Add appropriate test.

2 files changed, 13 insertions, 0 deletions

diff --git a/actionpack/lib/action_controller/metal/head.rb b/actionpack/lib/action_controller/metal/head.rb
index 0d93e2f7aa..70f42bf565 100644
--- a/actionpack/lib/action_controller/metal/head.rb
+++ b/actionpack/lib/action_controller/metal/head.rb
@@ -38,6 +38,8 @@ module ActionController
         headers.delete('Content-Type')
         headers.delete('Content-Length')
       end
+      
+      true
     end
 
     private
diff --git a/actionpack/test/controller/render_test.rb b/actionpack/test/controller/render_test.rb
index 488585c7a4..79e2104789 100644
--- a/actionpack/test/controller/render_test.rb
+++ b/actionpack/test/controller/render_test.rb
@@ -173,6 +173,11 @@ class TestController < ActionController::Base
     head :forbidden, :x_custom_header => "something"
   end
 
+  def head_and_return
+    head :ok and return
+    raise 'should not reach this line'
+  end
+
   def head_with_no_content
     # Fill in the headers with dummy data to make
     # sure they get removed during the testing
@@ -560,6 +565,12 @@ class HeadRenderTest < ActionController::TestCase
     assert_equal "something", @response.headers["X-Custom-Header"]
     assert_response :forbidden
   end
+
+  def test_head_returns_truthy_value
+    assert_nothing_raised do
+      get :head_and_return
+    end
+  end
 end
 
 class HttpCacheForeverTest < ActionController::TestCase