lib/action_view/helpers/csrf_helper.rb in actionpack-4.0.3 vs lib/action_view/helpers/csrf_helper.rb in actionpack-4.0.4.rc1

@@ -10,11 +10,13 @@
       #   </head>
       #
       # These are used to generate the dynamic forms that implement non-remote links with
       # <tt>:method</tt>.
       #
-      # Note that regular forms generate hidden fields, and that Ajax calls are whitelisted,
-      # so they do not use these tags.
+      # You don't need to use these tags for regular forms as they generate their own hidden fields.
+      #
+      # For AJAX requests other than GETs, extract the "csrf-token" from the meta-tag and send as the
+      # "X-CSRF-Token" HTTP header. If you are using jQuery with jquery-rails this happens automatically.
       def csrf_meta_tags
         if protect_against_forgery?
           [
             tag('meta', :name => 'csrf-param', :content => request_forgery_protection_token),
             tag('meta', :name => 'csrf-token', :content => form_authenticity_token)