fido-4.js

var filters = {
        accept:
          [
            {
              type: 'FIDO_2_0',
              id:  getCredentialIDFromLocalStorage()
            }
          ]
        };
window.msCrendentials.getAssertion(challenge, filters)
 .then(function(attestation) {
    // Send signed challenge and meta data to server
    sendToServer({
			credential: {type: 'ScopedCred', id: attestation.id},
			clientData: attestation.signature.clientData,
			authnrData: attestation.signature.authnrData,
			signature: attestation.signature.signature
			};
    );
  });   

window.msCrendentials has a typo, should be window.msCredentials