Why don't the modern browsers support PUT and DELETE form methods?

Question

I just finished building a RESTful API for one of my latest apps. I also built a simple admin interface scaffolding class that will enumerate resources and build simple form

Answer 1

HTML 4.01 supports only post and get, see http://www.w3.org/TR/html4/interact/forms.html#h-17.3 Not sure about other HTML specs.