Did you check if there was an error reported by CGI? Did you receive the large file? A POST larger than the limit should report an error through the error method. 
my $error = $cgi->error();
if ($error) {
    die $error;
}

[download]
To get the MIME type that the browser report, use the uploadInfo mehod. 
my $file = $cgi->param('upload');
my $content_type = $cgi->uploadInfo($file)->{'Content-Type'};

[download]

In reply to Re: Setting max upload size/MIME types by iburrell
in thread Setting max upload size/MIME types by perleager

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