Bugzilla – Bug 830
make summary attribute on table non-conforming (instead of obsolete-but-conforming)
Last modified: 2011-04-30 16:40:33 CEST
http://dev.w3.org/html5/spec/obsolete.html#attr-table-summary
https://bitbucket.org/validator/syntax/changeset/595599410bd8 https://bitbucket.org/validator/validator/changeset/2168a00d2e0d