The HTML code following after the line print <<EOF; is not properly quoted. You should write that line as: 

    print <<'EOF';

[download]
to prevent perl from interpolating $. and $( as variables.

In reply to Re: what is this error means Use of uninitialized value $. in concatenation (.) or string by martin
in thread what is this error means Use of uninitialized value $. in concatenation (.) or string by aca

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