1795020 - Support Webauthn large blob storage extension

Status: RESOLVED FIXED

(Core :: DOM: Web Authentication, enhancement, P2)

Description

[R. Martinho Fernandes [:rmf]]

See: https://www.w3.org/TR/webauthn-2/#sctn-large-blob-extension

Comment 1

[Neha Kochar [:neha]]

https://wpt.fyi/results/webauthn?label=master&label=experimental&aligned&q=getcredential-large-blob

Comment 2

[bernhardkaindl7]

Test case of largeBlob: Open https://webauthn-large-blob.glitch.me/ in its own tab.
Origin: https://github.com/oddsdk/passkeys/issues/13#issuecomment-1815785431

Comment 3

[John Schanck [:jschanck]]

Attachment: Bug 1795020 - support WebAuthn large blob extension. r=keeler

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/1cd8bd2336c3
support WebAuthn large blob extension. r=webidl,keeler,smaug

Comment 5

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/1cd8bd2336c3

Comment 6

[John Schanck [:jschanck]]

The browser compatibility table here needs to be updated to list Firefox support for the largeBlob extension as of version 139.

Comment 7

[John Schanck [:jschanck]]

Release Note Request (optional, but appreciated)
[Why is this notable]: This extension is not frequently used, but our lack of support was causing at least one notable webcompat issue (Bug 1923588).
[Affects Firefox for Android]: no
[Suggested wording]: Added support for the WebAuthn largeBlob extension.
[Links (documentation, blog post, etc)]:
https://github.com/w3c/webauthn/wiki/Explainer:-WebAuthn-Large-Blob-Extension

Comment 8

[Ryan VanderMeulen [:RyanVM]]

Added to the Fx139 relnotes.

Comment 9

[Hamish Willee]

FF139 MDN docs work done as part of https://github.com/mdn/content/issues/39302.