Using yoast SEO plugin for Wordpress that allows me to add a meta description for the Twitter card. Example:
(from the page - http://blog.happynumbers.com/getting-started-interactive-whiteboard/ )
From what I understood, Open Graph is supported for twitter cards and such a scheme is ok to validate the card. However, I can’t validate the card and couldn’t find why…
Could you please help?
Thanks a lot!