I tried using both the snippets for open graph protocol and from schema.org then ran the Structured Data Testing Tool and everything checked out. I restarted my Openshift app but the darn image I specify won't load. It just loads the one displayed on my index page (which is not appropriate) The other attributes change but not the image. Any idea what else I should try?
I followed the following but none of it worked https://webmasters.stackexchange.com/questions/25581/how-does-google-plus-select-an-image-from-a-shared-link