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When using the "Validate by Direct Input" feature of the validator, the following code: <!doctype html> <title></title> causes the error: === Software error: Insecure dependency in eval while running with -T switch at /usr/local/share/perl/5.10.0/HTTP/Message.pm line 413. For help, please send mail to the webmaster (ot@w3.org), giving this error message and the time and date of the error. ===
This is a problem with some versions of perl library libwww-perl. The very latest release of that library fortunately fixes the issue.