[signal-unknown-credential.https.html]
  [signalUnknownCredential fails with SecurityError for invalid RP IDs]
    expected: FAIL

  [signalUnknownCredential fails with TypeError for invalid base64url]
    expected: FAIL

  [signalUnknownCredential does not remove a credential that does not match the ID]
    expected: FAIL

  [signalUnknownCredential removes a credential that matches the ID]
    expected: FAIL