I'm not sure but it looks like an error in JavaScript code which submits form. CGI::Dump should print query parameters as it is. [object] is just a string which your CGI got from user agent. I have not played with JavaScript for long time but AFAIK if some variable contains an object and it is used in string (like in code "somevar: " + somevar) then it is converted to string [object].

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Ilya Martynov (http://martynov.org/)