Re: [webauthn] Refer to IntersectionObserver from the Security Considerations (#1105)

@jcjones: 
> per the argument at TPAC that practically, iframes can always be obscured or made not-credibly-visible

hm, I cannot find that discussion/argument in the [webauthn TPAC 2019 minutes](https://www.w3.org/2019/09/20-webauthn-minutes.html)   -- did we have it during a regular concall?  my search-fu is failing me at the moment...   re-opening this because I think we oiught to point to the discussion or summarize it in more detail if we can.

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Received on Friday, 1 November 2019 00:50:13 UTC