Twitter card does not work although we have already got the approval ! Why?

solom00n · 2013-07-04T18:00:22.000Z

Reading through several posts in this category, I think the problem is due to the lack of “www” during my site domain registration process and approval !!
My site domain is http://www.citybuyers.it/ and i would like to show twitter card when tweeting the following link: http://www.citybuyers.it/cbbeta/support_cb/

Could you please help me taking a look ?? Thank you !!

PaperShare · 2013-07-05T16:42:02.000Z

We have the same issue for ALL of our Twitter Cards on papershare as well. for example the tweet pointing to http://www.papershare.com/paper/optimizing-java--apache-hadoop-for-intel-architecture-white-paper did not result in a twitter card.

solom00n · 2013-07-05T18:48:10.000Z

It seems to be a general issue !! Anyway, today the card was correctly showed up after making a few change and now, apparently, it’s all ok !! I have added the “twitter:url” meta tag which seems to be not required and even not showed in the Twitter Card Approval tool.

Actually, I really don’t know if it’s worth and makes the difference. This change indeed had no effects until this morning !!