Wow, what an asinine response. How about just letting us know what to do here anyhow? I’m not going to go through an entire documentation page for an hour or two. I tried to go to the documentation page and couldn’t find ANY help!
So… what to do when our preview thumbnails are not showing up and debugger doesn’t work?
INFO: Page fetched successfully
INFO: 37 metatags were found
INFO: twitter:card = player tag found
ERROR: Possibly invalid value (if specified) (twitter:player)
ERROR: Possibly invalid value (if specified) (twitter:text:player_width)
ERROR: Possibly invalid value (if specified) (twitter:secureurl:player_url)
ERROR: Possibly invalid value (if specified) (twitter:player:width)
ERROR: Possibly invalid value (if specified) (twitter:text:player_height)
ERROR: Possibly invalid value (if specified) (twitter:player:height)