Hello.

I rewrite the problem.

Any help or advise would be great as I’m stuck?

My link : 국회윤리특위, 여야의원 9건 징계소위에 회부(종합) | 연합뉴스
Twitter : https://twitter.com/Berbersunny/status/570506223214153729

When I preview a link in the Card Validator, I get the following message,

*.yonhapnews.co.kr whitelist request for summary card was approved 2 years ago

But at the same time, the log throws a warning as Not whitelisted,

INFO:  Page fetched successfully
INFO:  29 metatags were found
INFO:  twitter:card = summary tag found
WARN:  Not whitelisted

I would be really grateful if someone could fix this issue. Thanks.

Actually I can observe the exact same issue. Looks like a Bug in the Card Validator.