for my first attempt at hacking discourse I wanted to add a few websites relevant to my audience to the onebox whitelist (most seems to be Open graph compliant too) as explained in various older posts.
But it turns out that whitelist.rb is not where it used to be ( https://github.com/discourse/discourse/blob/master/lib/oneboxer/whitelist.rb ) and in fact it is nowhere to be found anymore
So I guess the way this works has changed considerably over the last few months. Any hints?
At one point I thought I had found the right place:
but there is only one file so that cannot be it