Formit: Do you really need the 'action'-attribute? in

Is it really necessary to use

if you use formit and <form>?

For a a special site where I would like to avoid a page-reload without parameters (like: ?par=16) I tried this in combination with a [[formit]]-call:

... and as far as I can see it works. But the question is if this could maybe lead to an error which I don´t see at the moment.

Does anybody know this?

All this means

Is that the form is going to submit to itself. So, if that's something you don't want - or have other plans in mind (e.g. ajax post) then I would say no. The markup may not validate, but that's up to you if that's acceptable or not.