Hi there!
We’re trying to show summary_image_large cards with a custom shortener that basically just 301 Redirects, for example from http://saveli.st/VyuCY9Wc ==> https://savelist.co/product/mario-maker-artbook-figura-amiibo-mario-30-aniversario/55aeba15880c188d8662c6ce
The Card Validator correctly renders the card and we made sure we aren’t having any robots.txt/caching issue, but we still don’t know why the cards are not showing. We are getting this warning:
INFO: Page fetched successfully
INFO: 31 metatags were found
INFO: twitter:card = summary_large_image tag found
INFO: Card loaded successfully
WARN: this card is redirected to https://savelist.co/product/mario-maker-artbook-figura-amiibo-mario-30-aniversario/55aeba15880c188d8662c6ce
Any help from the Twitter Cards team will be greatly appreciated.
Thanks!