This plugin adds the xmlns:addthis=”http://www.addthis.com/help/api-spec” entry to the HTML tag. This head entry is required to make it Valid XHTML. More info at http://www.addthis.com/help/client-api#valid-xhtml
- Why do I need this plugin?
If you are using the AddThis bookmarking plugin ( https://wordpress.org/extend/plugins/addthis/ )
then you need this plugin to make sure that the generated HTML by the AddThis plugin is Valid.
The plugin adds the xmlns:addthis=”http://www.addthis.com/help/api-spec” entry to the html head tag so that the custom attributes of the AddThis plugin are recognized properly.
- Initial release.