spec 2 linked patterns checked

HTML Standard autofill credential and webauthn tokens

Defines username, current-password, one-time-code, and webauthn autofill behavior, including sign-in pages that can offer saved passwords or public key credentials from the same credential field.

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Pattern Decisions This Source Supports

Pattern Supported decision Required contract Claim note
Sign in Choose sign in when the user needs to start or restore an authenticated session for an existing account. The sign-in form identifies the protected service or destination before requesting credentials. The HTML Standard supports webauthn credential suggestions alongside current-password on sign-in pages.
Two-factor authentication Choose two-factor authentication when the user must satisfy an additional factor after a primary credential, SSO return, passkey flow, risk signal, new device, or sensitive action. The challenge appears only when the server requires additional verification and the protected action remains blocked until success. The HTML Standard supports one-time-code and webauthn autocomplete behavior for authentication flows.

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Publisher: WHATWG. Last checked: .

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