Re: [spec-reviews] CSS font-display (#71)

> The other thing that either @slightlyoff or @plinss mentioned was whether there should be a way to tell whether a font was used or not. I'm not sure what such an API would look like, though.

Is this what I said above with "no way to be notified that the UA is requesting a font-face so it can render with it", or something else?

> Seems a little concerning (from an interop perspective) to have 'auto' be user-agent defined, but user agents can change their behavior to harmonize without it impacting the spec.

As documented in the intro table, UAs generally disagree with each other today.  `auto` is needed to explain that, so we have an initial value that reflects reality.

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