It loads a different room by walking to the end of the hallway.
What setting are you talking about specifically though?
Player Settings:
WebAssembly Language Features
Enable Exceptions:
(You appear to have selected Full - because it's listing all the steps it is going through when I open the game.)
Oh, that's the introduction when you start the game for the first time. Although since it's WebGL data doesn't get saved, so it plays the intro every time. I appreciate the help either way though!