The quick (and possibly dirty, depending on your POV) is to ensure that your hash has a default value the first-time through. 

my %webobj = (
                'template' => param('template')||'',
                'minscale' => param('minscale')||'0'
            );

[download]

A quick test shows this seems to work ok for your example.

Examine what is said, not who speaks.

The 7th Rule of perl club is -- pearl clubs are easily damaged. Use a diamond club instead.

In reply to Re: Puzzling CGI behavior by BrowserUk
in thread Puzzling CGI behavior by punkish

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