You're welcome :) I have no obvious information I can add to the provided description. There was no errors in browser console or on the screen.
Firefox, Linux Mint. Have no other browsers.
Reloading game restarts it, but issue resurns whenever choise appears. Before it walking around with arrows works.
Have not noticed restart button. And this button does not work at any point during the game. WASD and IJKL movement works, but sticky: as if key stays held permanently (until game reload).