IOS 12.2 just came out for your Iphone. Now in Safari, it turns off the motion sensor by default.

Without the motion detection, you cannot experience VR through the magic window (gyroscopic mode). It is simple to turn it back on, here are the steps:

  1. Go into your phone settings.
  2. Click onto Safari.
  3. Scroll and turn on the Motion & Orientation Access under Privacy & Security.
  4. Now you will be able to view your VR through the magic window!