Something went wrong while displaying this webpage.....
Got this two times in a raw after 10-20 sec of previewing the page on Windows Chrome PC ;(

Nice!
I would skip the autorotate in non vr mode though. Mobiles.
Tuur

At home PC same (configuration) all works fine. For now I would say this is up to my proxy settings related to mp3 but will know more on Monday when I will be again able to test on the PC where crushing occurred.
F12 also open Console on Chrome

It looks ok but it crush again. Can't see good use case to be sure when it goes in that mode. Only thing other than traces I see:
Deferred long-running timer task(s) to improve scrolling smoothness. See crbug.com/574343.
When it crush viewer is gone, only Aw, Snap! with msg: Something went wrong while....

In DevTools also message: DevTools was disconnected from page. Once page is reloaded, DevTool will automatically reconnect.

When turing on Toogle Device Toolbar I see also:
undefined:1 Uncaught (in promise) DOMException: screen.orientation.lock() is not available on this device. just after Enter_VR_Mode, Enter_FS

Hope any of this helps you to get right direction for debugging.

Aha, now I tested again and when I change focus to other Tabs and come back it crush but not every time.