Chrome 79 on Desktop and Mobile along with Oculus Browser on OS12 have WebXR on by default. LearnBrite is currently implementing a solution to this which should be ready shortly.
To continue to enjoy immersive experiences in the meantime you will need to adjust two flags in Chrome.
- Visit chrome://flags/#webxr and set to Disabled
- Visit chrome://flags/#enable-webvr and set to Enabled
- Relaunch Chrome
Now you can visit your LearnBrite experience in immersive mode.
Check back here for an update on Chrome 79 and immersive mode. When fixed you can just reverse the settings above.