tree 07b7dd380dd602e7c5fcfe33fe8f3582a95902b4
parent e3e1af09d74b1d6623bbd6e9318d0faf3ba34729
author Adam Langley <agl@chromium.org> 1684454662 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1684459457 -0700

webauthn: allow optional JSON fields to be omitted.

In https://github.com/w3c/webauthn/pull/1878, the spec for the JSON
representation of WebAuthn requests changes so that missing optional
fields are omitted rather than null.

This change allows Chromium to parse either style. Once this has been
around for a while, we can change the `ToValue` functions to omit
fields.

Since the blink/ parts aren't launched yet, immediately update them to
omit the userHandle rather than produce a null value. (The
authenticatorAttachment was already omitted when needed.)

Bug: 1427843
Change-Id: I5a5baa698759ae4dba678457d043114e15b57eca
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4538047
Commit-Queue: Martin Kreichgauer <martinkr@google.com>
Auto-Submit: Adam Langley <agl@chromium.org>
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
Cr-Commit-Position: refs/heads/main@{#1146272}