Right, that works very nicely !
Just to recap …
Now when you share a page’s URL, you share the actual page you are on, not the “site” - so if someone clicks your link then go to the page that was shared. This will pick up the page tags of that page.
If you want to share “your site” - so people clicking on the share will go to the index page not the page the sharer was on … you can just put the top level URL into the share, and it will pick up tags from the top level (or default the images).
Nice.
Anyone else what to have a test ?