width, align, valign, cellpadding, cellspacing, border, summary, bgcolor
Error: The width attribute on the table element is obsolete. Use CSS instead.
Error: The align attribute on the table element is obsolete. Use CSS instead.
Error: The valign attribute on the table element is obsolete. Use CSS instead.
Error: The cellpadding attribute on the table element is obsolete. Use CSS instead.
Error: The cellspacing attribute on the table element is obsolete. Use CSS instead.
Error: The border attribute on the table element is obsolete. Use CSS instead.
Error: The summary attribute on the table element is obsolete. Consider describing the structure of the table in a caption element or in a figure element containing the table; or, simplify the structure of the table so that no description is needed.
Error: The bgcolor attribute on the table element is obsolete. Use CSS instead.
Error: The element button must not appear as a descendant of the a element.
Specification:
http://w3c.github.io/html/textlevel-semantics.html#the-a-element
"Allowed ARIA role attribute values: link (default - do not set), button, checkbox, radio, switch, tab or treeitem"
"The <a> element may be wrapped around entire paragraphs, lists, tables, and so forth, even entire sections, so long as there is no interactive content within (e.g., buttons or other links)."
Different fix than @adschellevis, upon closer inspection this seems
to make more sense to ditch it. No plugins use the remote notification
support, so we can remove / replace it for 18.1.
