Summary_large_image images sometime not appearing, validating correctly, allowed by twitterbot

cards

#1

On some summary_large_image tweets the images are not displaying

https://www.seventhgeneration.com/enhancing-health/breast-cancer-awareness-importance-prevention

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

  • Card is validated and loaded correctly https://cards-dev.twitter.com/validator
  • Other summary_large_image tweets do show images that reside in the same directory as tweets that don’t show images, so robots.txt is apparently allowing Twitterbot to crawl these directories.

I’ve run out of troubleshooting options, I can’t seem to find what is causing only some of the tweets to be affected. As an example of one that does show the image correctly, see https://www.seventhgeneration.com/come-clean/driving-momentum-comeclean-fight-ingredient-disclosure. You will notice that the difference between the metadata for the two referenced tweets is the second tweet displays images without twitter:image and uses only OG metadata.