Chrome Version: 61.0.3159.0
OS: Android N
VRCore: 1.7.161000338
Device: Pixel XL
Headset Daydream

What steps will reproduce the problem?
(1) enable Webvr flag
(2) go to https://try.matterport.com/virtual-reality/webvr/
(3) scroll down to the "try it" section and select it.
(4) press enter vr button and follow DON flow

What is the expected result? Presentation shows content

What happens instead? black screen