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So, I got stuck on this bug for an hour - so I thought I’d write it down.
I was using prototype js’s serialize command on a form. I was also using a strict xhtml doctype. My form elements had IDs only - and did not have names. Well, serialize kept coming back empty. Turns out that prototype requires there to be names on each of the elements.
UPDATE: Der - according to W3C, the name attribute of the form tag is deprecated, not the name attribute of the form elements…
hits head with hand