Domain not whitelisted despite request several times. All meta tags etc. present



Description of issue:
We have requested whitelisting of the domain several times. This error shows up when we request approval:
* whitelist request for failed
ERROR: Card validation failed

The regular domain is whitelisted.
* is whitelisted for summary card

URL affected (must be public):

Troubleshooting steps attempted [note that we will not prioritise posts unless there is evidence of following the troubleshooting guides]:

Followed troubleshooting guidelines. Please note is a redirecting sub-domain.


I am seeing

INFO:  twitter:card = 21 CFR Part 11 tag found

That is not a valid card type. You need to fix the twitter:card tag.


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