Does not work on IpadOS 17.2

Sudowrite does not work on IpadOS 17.2 beta in Safari on an iPad. I am running 17.2 public beta. Since upgrading from 17.1, sudowrite no longer works. Safari loads the web page, but will not allow me to login. The Login menu item is non-responsive. Other web pages appear to work fine, I can only assume that its something to do with sudowrite.