Dear twitter experts,
I’m trying to use the Twitter Cards (summary) with my blogspot blog.
I implemented the meta following your instructions and everything seemed to be OK except for the twitter:image field.
In particular, I’m using this code for the image url:However, what I get when validating the html is a "invalid url" warning.
If I ignore the warning I can approve the summary card, but of course the thumbnails are not showing. Could you please indicate me what I should use instead to employ as image the blogspot thumbnails of my posts?
Any help would be more than welcome.
Thank you much for your assistance.