Linking the main page at digitalcollections.nypl.org shows a default card, but not the individual image pages. We’ve gone over the meta tags and can’t figure out if this is on our end or Twitter’s. When sent through the validator tool, nothing comes up in the log, and descriptive metadata is there but the image preview does not show.
*.digitalcollections.nypl.org is whitelisted for summary_large_image card
INFO: Page fetched successfully
INFO: 19 metatags were found
INFO: twitter:card = summary_large_image tag found
INFO: Card loaded successfully