a … rel="footnote" not valid HTML5

  • This is non-critical and really just an FYI. My site uses HTML5 and, when checking validity of the HTML at validator.w3c.org, validation fails on every footnote with:

    Bad value footnote for attribute rel on element a: The string footnote is not a registered keyword.

    The a rel=”footnote” feature was new in the latest release of the plugin. An option to turn it off would be welcome.

    However, as I hinted at the start, this is really not critical and the plugin is indispensable – best of its type in my opinion. Also working well on WP4.1.

    Thanks.

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