I think they've added this too. At the bottom it says they're adding the ScreenOrientation API and it seems to be able to do this. https://developer.mozilla.or

I think they've added this too. At the bottom it says they're adding the ScreenOrientation API and it seems to be able to do this. https://developer.mozilla.org/en-US/docs/Web/API/ScreenOrientation/lock https://developer.mozilla.org/en-US/docs/Web/API/ScreenOrien...