The ISUVPAA button reports wrong in Android Firefox

[koresar]

• Install Firefox browser for Android
• Open the page and click "ISUVPAA" (maybe rename the button? I have no idea what that means.) Problem: the toast message says "... NOT available". Actual: When clicking "REGISTER PLATFORM ..." the Firefox does work as expected (like Chrome does). So, yeah, it is available.

Suggestion: Implement the ISUVPAA button using only client-side JavaScript.

[cpiper]

The isUVPAA button calls the API: https://www.w3.org/TR/webauthn/#isUserVerifyingPlatformAuthenticatorAvailable and is implemented in client side JS here: https://github.com/google/webauthndemo/blob/67ff392f18f8244800d9d5184219bef3c0615437/src/main/webapp/js/webauthn.js#L414

Firefox as a browser needs to expose the API, so this is probably an issue on the browser side.

[koresar]

Found it! Thank you

For all the others: https://developer.mozilla.org/en-US/docs/Web/API/PublicKeyCredential/isUserVerifyingPlatformAuthenticatorAvailable