“It saddens us to bring you this news, but Children of Ur is no longer working in Google Chrome, our browser of choice,” the team said on Facebook. “This is because Chrome is no longer supporting a feature that Polymer (which we heavily rely on) uses. CoU will not run on Chrome for the indefinite future, as resources are very limited. From this point on, Mozilla Firefox is the browser to use in order to play CoU. Unfortunately, the game is very choppy and somewhat slow in their browser.”
This notice was the first development post about the game since May 2017. Children of Ur is one of two indie community projects that have been attempting to bring back Glitch in some way, shape, or form, the other one being Eleven.