認証器の登録 navigator.credentials.create() { "publicKey": { "rp": { "id": "localhost", "name": "検証用ローカルホスト" }, "user": { "id": [101, 100, ...], "name": "taro", "displayName": "太郎" }, "challenge": [101, 100, ...], "pubKeyCredParams": [ { "type": "public-key", "alg": -7 } ], "timeout": 15000, "excludeCrede…