Perhaps and hopefully is somebody able to explain following behavior of a Symfony2 application (v2.3):
As soon as we wrapped the app kernel in the Symfony AppCache, the forms using HTTP methods DELETE or PUT didn't work anymore. The forms using method PUT wont validate anymore and submitting forms using method DELETE, result in:
405 - Method not allowed.
I've replaced PUT and DELETE with POST but I really would like to know more about it. I'm can't find any related posts.
You can get things clear from here:
http://symfony.com/doc/current/book/http_cache.html#safe-methods
Regarding the method now allowed, Have you created the hidden field for that method? http://symfony.com/doc/current/book/forms.html#changing-the-action-and-method-of-a-form