Autocomplete attribute value to indicate form input is third-party data

[Crissov]

What problem are you trying to solve?

Skimming over this Chromium bug, where authors argue that browsers should always respect author’s instructions with autocomplete=off, many actually have the issue that some clerk is entering (address) data of other people but gets auto-completion offered with their own data.

What solutions exist today?

Authors can opt in and out of autofill with the on and off values of the autocomplete attribute (with autofill expectation mantle), but browsers not always respect that choice, probably intending to improve user experience.

How would you solve it?

In the second level of autofill detail tokens, add a third (mutually exclusive) value besides shipping and billing, e.g. client.
Alternatively, put that distinction on par with on and off.

Anything else?

No response