Twitter Summary card for website


My tweet card shows up with an error when I use the card validator tool.

Here is the error message:

INFO:  Page fetched successfully
INFO:  14 metatags were found
INFO:  twitter:card = promo_website tag found

ERROR: Required field missing (_forward_card_height_)

Our tweet card url is

Included the img src width and height using the tags - twitter:image:width, and twitter:image:height:


I’ve just put your URL into the validator and it seems to work fine, you just need to apply for whitelisting on the left hand side.


@andypiper Thank you - very helpful, and I have submitted for white list approval.