1 files changed, 1 insertions, 1 deletions
diff --git a/actionpack/lib/action_view/helpers/javascripts/prototype.js b/actionpack/lib/action_view/helpers/javascripts/prototype.js
index d71e878876..9790d3b689 100644
--- a/actionpack/lib/action_view/helpers/javascripts/prototype.js
+++ b/actionpack/lib/action_view/helpers/javascripts/prototype.js
@@ -154,7 +154,7 @@ Ajax.Request.prototype = (new Ajax.Base()).extend({
           'application/x-www-form-urlencoded');
       }
       
-      this.transport.send(this.options.parameters);
+      this.transport.send(this.options.method == 'post' ? this.options.parameters + '&_=' : null);
                       
     } catch (e) {
     }