let regResult = await navigator.credentials.create({
	publicKey: {
		attestation: "none",	// unless you're security paranoid
		rp: {					// rp = relying party
			id: document.location.hostname,
			name: "My Cool Web Site"
		},
		user: {
			name: USER_NAME,
			displayName: USER_DISPLAY_NAME,
			id: USER_ID
		},
		challenge: USER_REG_CHALLENGE,
		pubKeyCredParams: [
			{
				type: "public-key",
				alg: -257		// RSASSA-PKCS1-v1_5
			},
			{
				type: "public-key",
				alg: -7			// ES256 / ECDSA (P-256)
			}
		]
	}
});