Chrome Version: 73.0.3644.0 (Official Build) canary (64-bit)
OS: N/A

What steps will reproduce the problem?
(0) Using an Android device...
(1) Register a pattern and a fingerprint in Android OS Settings
(2) Register a credential at https://webauthndemo.appspot.com/ with "Register platform authenticator"
(3) Turn off the pattern and remove the fingerprint in Android OS Settings
(4) Re-register a pattern and a fingerprint in Android OS Settings
(5) Go to https://webauthndemo.appspot.com/ again and try "Authenticate"

What is the expected result?
Return error right away.

What happens instead?
Silence continues for the specified timeout period.