在此页面(一定要有https，感兴趣的同学可以访问http的此页面观察对比现象)
随手打开Console，粘！

或者

注意:里面相关ID的scateu.me字样要与域名相匹配。

注册:

var randomChallengeBuffer = new Uint8Array(32);
window.crypto.getRandomValues(randomChallengeBuffer);

var base64id = 'MIIBkzCCATigAwIBAjCCAZMwggE4oAMCAQIwggGTMII='
var idBuffer = Uint8Array.from(window.atob(base64id), c=>c.charCodeAt(0))

var publicKey = {
    challenge: randomChallengeBuffer,

    rp: { id: "scateu.me", name: "scateu.me" },

    user: {
        id: idBuffer,
        name: "alice@example.com",
        displayName: "Alice von Wunderland"
    },

    attestation: 'none',

    pubKeyCredParams: [
        { type: 'public-key',  alg: -7  }, // ES256
        { type: 'public-key', alg: -257 }  // RS256
    ]
}

navigator.credentials.create({ publicKey })
    .then((newCredentialInfo) => {
        console.log('SUCCESS', newCredentialInfo)
    })
    .catch((error) => {
        console.log('FAIL', error)
    })

认证: 把上一步中的ID粘进来

var ID = "cBTxv-1BhIN-GFSeMLife_F5O5iyfawtwvLCNcMF873EbO-CrRtUZHdZHQCLCHWew-bS7LTzlHS_6mlpkl0Dtw"; // CHANGEME
decode = function(input) {
        // Replace non-url compatible chars with base64 standard chars
        input = input
                .replace(/-/g, '+')
                .replace(/_/g, '/');

        // Pad out with standard base64 required padding characters
        var pad = input.length % 4;
        if(pad) {
                if(pad === 1) {
                        throw new Error('InvalidLengthError: Input base64url string is the wrong length to determine padding');
                }
                input += new Array(5-pad).join('=');
        }

        return input;
};


var randomChallengeBuffer = new Uint8Array(32);
window.crypto.getRandomValues(randomChallengeBuffer);

console.log(navigator.credentials.get({publicKey: {
    allowCredentials: [
      {
        id: Uint8Array.from(atob(decode(ID)), c => c.charCodeAt(0)),
        type: "public-key"
      }
    ],
    challenge: randomChallengeBuffer,
    rpId: "scateu.me",
    timeout: 90000,
    userVerification: "discouraged"
  }
}))