注册安全付款确认

const isSecurePaymentConfirmationSupported = async () => {   if (!'PaymentRequest' in window) {     return [false, 'Payment Request API is not supported'];   }    try {     // The data below is the minimum required to create the request and     // check if a payment can be made.     const supportedInstruments = [       {         supportedMethods: "secure-payment-confirmation",         data: {           // RP's hostname as its ID           rpId: 'rp.example',           // A dummy credential ID           credentialIds: [new Uint8Array(1)],           // A dummy challenge           challenge: new Uint8Array(1),           instrument: {             // Non-empty display name string             displayName: ' ',             // Transparent-black pixel.             icon: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==',           },           // A dummy merchant origin           payeeOrigin: 'https://non-existent.example',         }       }     ];      const details = {       // Dummy shopping details       total: {label: 'Total', amount: {currency: 'USD', value: '0'}},     };      const request = new PaymentRequest(supportedInstruments, details);     const canMakePayment = await request.canMakePayment();     return [canMakePayment, canMakePayment ? '' : 'SPC is not available'];   } catch (error) {     console.error(error);     return [false, error.message];   } };  isSecurePaymentConfirmationSupported().then(result => {   const [isSecurePaymentConfirmationSupported, reason] = result;   if (isSecurePaymentConfirmationSupported) {     // Display the payment button that invokes SPC.   } else {     // Fallback to the legacy authentication method.   } }); 

const options = {   challenge: new Uint8Array([21...]),   rp: {     id: "rp.example",     name: "Fancy Bank",   },   user: {     id: new Uint8Array([21...]),     name: "[email protected]",     displayName: "Jane Doe",   },   excludeCredentials: [{     id: new Uint8Array([21...]),     type: 'public-key',     transports: ['internal'],   }, ...],   pubKeyCredParams: [{     type: "public-key",     alg: -7 // "ES256"   }, {     type: "public-key",     alg: -257 // "RS256"   }],   authenticatorSelection: {     userVerification: "required",     residentKey: "required",     authenticatorAttachment: "platform",   },   timeout: 360000,  // 6 minutes    // Indicate that this is an SPC credential. This is currently required to   // allow credential creation in an iframe, and so that the browser knows this   // credential relates to SPC.   extensions: {     "payment": {       isPayment: true,     }   } };  try {   const credential = await navigator.credentials.create({ publicKey: options });   // Send new credential info to server for verification and registration. } catch (e) {   // No acceptable authenticator or user refused consent. Handle appropriately. }