HTML.Reserved

This page is using reserved attributes from HTML 4.01, declared in the DTD, but not conformant by specification definition.

<span datasrc="#bank_acct" datafld="balance" dataformatas="html"></span>

<table datapagesize="cheese"><tr><td>datapagesize</td></tr></table>

<script type="text/javascript" event="cheese" for="#boo"></script>

datasrc, dataformatas and datafld are flagged as invalid.

datapagesize is considered valid though the DTD says:

datapagesize CDATA         #IMPLIED  -- reserved for possible future use --

<!ATTLIST SCRIPT
[...]
  event       CDATA          #IMPLIED  -- reserved for possible future use --
  for         %URI;          #IMPLIED  -- reserved for possible future use --
  >