This is interesting! We just added social previews for searches, so that if you share a search, it will show a graph of the search results for that hit.
Here is how the twitter debugger shows a search for “global warming, climate change”:
And here’s how the facebook debugger shows the same thing:
So it seems to be working. But I’ve been banging my head on this for a while, because my first testcase was just our homepage, which looks like this on Twitter:
But this on facebook (note the whitespace).
It seems that Facebook is detecting “election rigged” in the image, and then censoring the image. I’ll probably go with “gun control, second amendment” as the homepage search in that case…