The `save` button seems broken

When I click save, nothing happens. If I right-click, I can copy link but it's just https://experiments.withgoogle.com/ai/beat-blender/view/share#.

(I made sure to edit the corners first, so there was something to save.)

I'm in latest Google Chrome Version 94.0.4606.81 (Official Build) (x86_64) on MacOS.

Everything else works! Thanks for wonderful software, I'm using it to teach secondary school students about AI.