\n \n

\n Passkeys Not Supported\n

\n Your browser doesn't support WebAuthn/Passkeys. Please use a modern\n browser like Chrome, Safari, or Firefox.\n

\n This demo requires a browser and device that support the WebAuthn\n API for passkey authentication.\n

\n );\n }\n\n return (\n

\n \n

Passkey Demo

\n Experience passwordless authentication using WebAuthn passkeys. Sign\n in securely with biometrics, PIN, or device authentication.\n

\n\n {message && (\n \n

\n {messageType === \"success\"\n ? \n : messageType === \"error\"\n ? \n : null}\n {message}\n

\n )}\n\n

\n {isSignedIn\n ? (\n // Signed In State\n

\n \n

\n Welcome Back!\n

\n You're signed in with your passkey\n

\n\n {user && (\n

\n User Information\n

\n Username:{\" \"}\n {user.username}\n

\n Created:{\" \"}\n {new Date(user.createdAt).toLocaleDateString()}\n

\n Credential ID:\n \n {user.credentialId.slice(0, 20)}...\n \n

\n )}\n\n

\n \n \n Sign Out\n \n\n \n Clear All Passkey Data\n \n

\n )\n : (\n // Sign In/Create State\n

\n \n

\n Passkey Authentication\n

\n Sign in securely without passwords\n

\n\n

\n {localStorage.getItem(\"passkey-credential\")\n ? (\n // Has existing passkey\n

\n You have an existing passkey. Sign in to continue.\n

\n \n {isLoading\n ? (\n

\n )\n : }\n {isLoading\n ? \"Authenticating...\"\n : \"Sign In with Passkey\"}\n \n

\n )\n : (\n // Create new passkey\n

\n \n Username\n \n setUsername(e.target.value)}\n className=\"w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-indigo-500\"\n placeholder=\"Enter your username\"\n onKeyDown={(e) =>\n e.key === \"Enter\" && handleCreatePasskey()}\n />\n

\n\n \n {isLoading\n ? (\n

\n )\n : }\n {isLoading ? \"Creating Passkey...\" : \"Create Passkey\"}\n \n

\n )}\n

\n\n

\n How it works:\n

• Uses your device's built-in authentication
• Biometric or PIN verification
• No passwords to remember or store
• Phishing-resistant security

\n\n

\n Troubleshooting:\n

• Make sure you're on HTTPS or localhost
• Enable biometrics/PIN on your device
• Try a different browser if issues persist
• Some corporate networks may block WebAuthn

\n )}\n

\n\n

\n This is a demonstration app. In production, credential verification\n would happen on a secure server.\n

\n\n {/* Error Details Section */}\n {lastError && (\n

\n Last Error Details\n

\n setLastError(null)}\n className=\"text-red-600 hover:text-red-800 text-sm\"\n >\n ✕ Close\n \n

\n\n

\n Error Type:\n

\n {lastError.name}\n

\n\n

\n Error Message:\n

\n {lastError.message}\n

\n\n

\n Timestamp:\n

\n {new Date(lastError.timestamp).toLocaleString()}\n

\n\n

\n Environment Info:\n

URL: {window.location.href}

Protocol: {window.location.protocol}

Hostname: {window.location.hostname}

User Agent: {navigator.userAgent}

\n WebAuthn Support:{\" \"}\n {window.PublicKeyCredential ? \"Yes\" : \"No\"}\n

\n {window.PublicKeyCredential && (\n

\n Platform Auth:{\" \"}\n {window.PublicKeyCredential\n .isUserVerifyingPlatformAuthenticatorAvailable\n ? \"Available\"\n : \"Unknown\"}\n

\n )}\n

\n\n {lastError.stack && (\n

\n Stack Trace (Click to expand)\n

{lastError.stack}

\n )}\n

\n\n

\n Common Solutions:\n

\n • NotAllowedError:{\" \"}\n User cancelled, try again or check device settings\n
\n • SecurityError: Must be HTTPS or localhost\n
\n • NotSupportedError:{\" \"}\n Browser/device doesn't support WebAuthn\n
\n • InvalidStateError:{\" \"}\n Credential already exists, try signing in instead\n
\n • ConstraintError:{\" \"}\n Device capabilities don't meet requirements\n

\n )}\n

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Code