It seems that Twitter cards are allowed in wordpress.com blogs. Unfortunately, it doesn’t work for me ! Here is my blog http://soundplugblog.wordpress.com
Forget about the meta on the header, it is already done for all the wordpress.com.
So, the only needy action is the validator tool. I’ve put my article through and he is correctly validated, but any card is available when I tweet the link…
If someone has an idea, it would be very helpful to me
Thanks a lot,