When I hit the 'Pin It' button I get a broken thumbnail, and when I hit the 'Pin It' button again (on the pinterest site) I get the following error :-
"You need to upload an image or provide the 'image_url' parameter"
Here is a sample URL I am trying to pin from :-
NB - the main image on that page pins OK if I do it manually within Pinterest.
Many thanks for the great plugin...