У вашего броузера проблема в совместимости с HTML5
Description: How to achieve a quick and simple teleportation mechanic in UE4 using traces against a nav mesh
Introduction to traces: https://www.youtube.com/watch?v=X-7Hu0HzbDU
UE4 Forum Thread : https://forums.unrealengine.com/showthread.php?96447-Tutorial-Mitch-s-VR-Lab-an-introduction-to-VR-in-UE4&p=449389#post449389
Source for this video(4.11): https://drive.google.com/open?id=0B6lHn83hV_KObWlZSEtVeVo2LTQ