Standardize abort errors

[jespertheend]

Proposed Change

If the user declines the UI prompt for calls such as navigator.credentials.get(), what the promise rejects with depends on the browser:

• Chrome: NotAllowedError: The operation either timed out or was not allowed
• Firefox: AbortError: The operation was aborted.
• Safari: NotAllowedError: The request is not allowed by the user agent or the platform in the current context, possibly because the user denied permission.

I was hoping to able to catch any error and only show a message to the user if they didn't intentionally declined the prompt. At the moment, handling this use case seems a bit difficult.

[timcappalli]

NotAllowedError is the expected error for a user cancellation, as defined in the WebAuthn specification.

I would recommend filing a bug with Mozilla for Firefox.

[jespertheend]

Ah sorry I didn't catch that, thanks for the info!

[jespertheend]

For reference, I opened up this ticket for Firefox.