Twitter cards were working for my domain for a while, but for some reason they have stopped. I’m trying to troubleshoot and get the message ‘Failed to fetch the page.’ from the validator tool. An example of a failing URL is http://ithoughthecamewithyou.com/post/Signs.aspx.
Also, the sample embed tags on the validator page (https://dev.twitter.com/docs/cards/validation/validator) are inconsistent with the documentation (i.e. https://dev.twitter.com/docs/cards/types/photo-card). The photo card documentation says to use twitter:image for the URL, the validator sample code says twitter:image:src. Which is correct?