An "ar" link relationship?

[marcoscaceres]

I was looking at Vieweing Augment Reality Assets in Safari for iOS and it describes an "ar" link relationship that applies to anchors. I don't think that's been standardized though.

On iOS, adding "ar" link relation adds a AR overlap button inside the context of the anchor:

Can be seen here (on an iOS device):
https://jsfiddle.net/61g0m2ky/1/

I wonder if we should standardize that too?

[donmccurdy]

The problem I find with rel="ar" is that it links to something effectively detached from the web. The direction in https://github.com/immersive-web/navigation seems, to me, both more flexible and more consistent as a user experience.