In spirit of permitting multiple values to the same parameter name, change the query builder I provided to this new one: 

my $query = join(';',
   map {
      my $k = shift @$_;
      join(';', map { uri_escape($k) . '=' . uri_escape($_) } @$_)
   }
   map { [$_, $CGI->param($_)] } $CGI->param()
);

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In reply to Re^2: Saving parameters before sending to 3rd party by Anonymous Monk
in thread Saving parameters before sending to 3rd party by jonnyfolk

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