It’s a little complicated, and they’re not SUPPOSED to be allowed to, but…they are.
Israeli police were still ordered to stop non-Muslim prayer, but many Jews took advantage of the opportunity to pray; Rabbi Jeremy Gimpel, co-founder of the Land of Israel Network, emulated Jews of 2,000 years ago and prostrated himself on the stones; the Israeli police removed him from the site.
He told Breaking Israel News, “Bowing down on the stones is a Torah commandment, precisely like in Temple times, and in a way we aren’t able to do when the Waqf guards are here. I couldn’t resist. I felt like every prayer, every mitzvah (Torah commandment) done at the Temple Mount opened the door to geula just a little more.”
I’m sure I’m supposed to be horribly upset or something.