Fearless Leader Emeritus Terry White posted this cool 3d/VR photo on his Facebook feed. It looks really cool on my iPad (iOS12.1). On my Mac, however, current Safari 12.0.1 the same photo says "Your Browser does not support 3D"
Well, that's just great, iPad's more capable for this use than macOS and Safari.
BTW, Terry's stylin'...
Weird, they have been working for me on my Mac since day 1.
Late 2014 5K iMac
For me, some of the VR/360 views posted on FB work, most don't, showing the Not Supported message. All display fine on Safari on the iPad.