Plugin setting og:url as '/' and not setting og:type

Using echo get_permalink($post->ID); instead of the_permalink() seems to help with the first part.

The second part is because the Front Page form is still using open_graph_type instead of home_open_graph_type as the input name

@matthisamoto how is your homepage set up? Static or as a blog?

@matthisamoto I believe we fixed it in 1.4.2. Please try and let us know.