Compatibility

A living, machine-probed WebAuthn/passkey support matrix rendered from the real, dated SoroPass matrix-pipeline snapshot — never hand-written.

Sourced, machine-probed, dated, and diffable — re-verified automatically, never hand-waved. This page renders the real exported snapshot from the matrix pipeline; nothing on it is typed by hand.

The matrix is generated by apps/matrix from MDN BCD ingest merged with a virtual-authenticator CI run, then exported to dated JSON snapshots. Every cell carries its real source, tier, and last-verified date, and unknowns render as ? instead of a fabricated green. Open the raw JSON to verify that nothing here is invented.

Freshness

Each published snapshot is stamped with provenance so you can see exactly how current it is:

Built — the date the snapshot was generated.
Relative age — how long ago that was (e.g. "today", "3 days ago").
BCD — the MDN browser-compat-data version that was ingested.
CI run — the date of the virtual-authenticator CI run that fed the snapshot.
Cells — the total number of feature × platform cells.
Coverage — the count of features times the number of platforms.

The eight platforms tracked in each snapshot are:

Platform	Browser	OS
Chrome	Chrome	desktop
Chrome Android	Chrome	Android
Edge	Edge	Windows
Safari macOS	Safari	macOS
Safari iOS	Safari	iOS
Firefox	Firefox	desktop
Firefox Android	Firefox	Android
Samsung	Samsung Internet	Android

Provenance

Every cell is tagged with where it came from. A snapshot's cells break down by source, and the source mix is shown as live counts. The three source-badge styles are:

ci — probed by the virtual-authenticator CI (also covers live feature-detection probes).
bcd — MDN browser-compat-data.
curated — cross-referenced from sources such as passkeys.dev and caniuse.

The page links the actual snapshot file produced by apps/matrix from MDN BCD merged with the virtual-authenticator CI run. Open it — every glyph in the grid comes straight from the snapshot's cells[] array, and unknowns render ? instead of a fake green.

How to read a cell

Glyph	Meaning
✓	supported
◐	partial
✕	unsupported
?	unknown

Each cell also carries a source badge:

Badge	Source
ci	virtual-authenticator CI
bcd	MDN BCD
curated	cross-referenced

Clicking a cell reveals its detail: the feature and platform, the status, the source, the version it has been supported since, its tier, the last-verified date, any notes, and a link to the upstream source.

Support grid

The support grid is a table of every tracked feature (rows) against the eight platforms (columns). Each intersection renders a status glyph plus its source badge, drawn directly from the snapshot's cells[]. Key features — including es256_alg (the ES256 algorithm SoroPass requires) and hybrid_transport — are highlighted.

Interactive matrix preview

The real component runs in mock mode on the demo. Open the demo →

CI grid — combinatorial proof

The CI grid is the combinatorial proof behind the support grid. It records the result of sweeping {transport × residentKey × UV} combinations on the CI runner, reporting for each combination whether the credential was created, asserted, verified, and which alg was negotiated. Each row is a real create → get round-trip checked with p256.verify.

Column	Meaning
transport × residentKey × UV	the combination under test
created	credential creation succeeded
asserted	assertion (get) succeeded
verified	signature verified with `p256.verify`
alg	the COSE algorithm negotiated

Limitations (a trust signal, not a footnote): platforms that are not available on the CI runner are cross-referenced from BCD rather than machine-verified for that run. Firefox / WebKit virtual authenticators remain out of scope; the CI sweep covers internal + usb transports with a deterministic low-S signer, so it does not reproduce Apple's ~50% high-S distribution.

No CI snapshot in an export yet? Run pnpm matrix:ci.

Rebuilding the snapshot

If the page cannot load /matrix/index.json, regenerate and re-export the snapshot:

pnpm --filter @soropass/matrix matrix:build
DOCS_PUBLIC_DIR=apps/site/public pnpm --filter @soropass/matrix docs:export