Get the correct window.innerHeight for 'orientationchanged' event

orientationchanged.js

// Wait until innerheight changes, for max 120 frames
function orientationChanged() {
  const timeout = 120;
  return new window.Promise(function(resolve) {
    const go = (i, height0) => {
      window.innerHeight != height0 || i >= timeout ?
        resolve() :
        window.requestAnimationFrame(() => go(i + 1, height0));
    };
    go(0, window.innerHeight);
  });
}