Avoid instance variable @output_buffer not initialized

Signed-off-by: José Valim <jose.valim@gmail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/actionpack/lib/action_view/base.rb b/actionpack/lib/action_view/base.rb
index 4ac2ee52d6..735398d972 100644
--- a/actionpack/lib/action_view/base.rb
+++ b/actionpack/lib/action_view/base.rb
@@ -201,7 +201,7 @@ module ActionView #:nodoc:
     end
 
     def initialize(lookup_context = nil, assigns_for_first_render = {}, controller = nil, formats = nil) #:nodoc:
-      @config = nil
+      @config  = nil
       @assigns = assigns_for_first_render.each { |key, value| instance_variable_set("@#{key}", value) }
       @helpers = self.class.helpers || Module.new
 
@@ -212,6 +212,7 @@ module ActionView #:nodoc:
       @_config       = ActiveSupport::InheritableOptions.new(controller.config) if controller && controller.respond_to?(:config)
       @_content_for  = Hash.new { |h,k| h[k] = ActiveSupport::SafeBuffer.new }
       @_virtual_path = nil
+      @output_buffer = nil
 
       @lookup_context = lookup_context.is_a?(ActionView::LookupContext) ?
         lookup_context : ActionView::LookupContext.new(lookup_context)