Thanks, it is working pretty well now. Just a couple more simple questions:
1. URL Linter says The og:locale property should be explicitly provided, even if a value can be inferred from other tags.
Is there a place where I can specify this or does it require manually adding to the template?
2. I have uploaded a logo.og.png image of 200x200px. And URL Linter has downscaled it to 50x50, smudging it quite a bit in the process. What size does facebook actually use when sharing? What is the overall best recommended size for this particular opengraph logo?