How to implement Login with amazon in ReactJS?

Why amazon Blocked a frame with origin "https://na.account.amazon.com" from accessing a cross-origin frame?

I am trying to implement LWA with ReactJS. But after authorizing the app it halts and gives this error-

Uncaught DOMException: Blocked a frame with origin "https://na.account.amazon.com" from accessing a cross-origin frame.
    at x (https://na.account.amazon.com/ap/oa?arb=a68c7499-a8a6-4672-bc34-8b87764fb2d6:238:51)
    at https://na.account.amazon.com/ap/oa?arb=a68c7499-a8a6-4672-bc34-8b87764fb2d6:266:7
    at https://na.account.amazon.com/ap/oa?arb=a68c7499-a8a6-4672-bc34-8b87764fb2d6:267:7

Here is how I am implementing LWA-

index.html:

<div id="amazon-root"></div>
      <script type="text/javascript">
        window.onAmazonLoginReady = function () {
          amazon.Login.setClientId('****');
        };
        (function (d) {
          var a = d.createElement('script');
          a.type = 'text/javascript';
          a.async = true;
          a.id = 'amazon-login-sdk';
          a.src = 'https://assets.loginwithamazon.com/sdk/na/login1.js';
          d.getElementById('amazon-root').appendChild(a);
        })(document);
      </script>

The button:

<a href="" id="LoginWithAmazon" onClick={(handleAmazonLogin)}>
       <img style={{ borderRadius: "10px" }} width="55px" alt="Login with Amazon" src={AmazonLogo} />
</a>

And the implementation:

declare const window: any;
...
const handleAmazonLogin = () => {
        let options: any = {};
        options.scope = 'profile';
        options.pkce = true;
        window.amazon.Login.authorize(options, function (response: any) {
            if (response.error) {
                console.log('oauth error ' + response.error);
                return;
            }
            window.amazon.Login.retrieveToken(response.code, function (response: any) {
                if (response.error) {
                    console.log('oauth error ' + response.error);
                    return;
                }
                window.amazon.Login.retrieveProfile(response.access_token, 
                function (response: any) {
                    console.log('Hello, ' + response.profile.Name);
                    console.log('Your e-mail address is ' + response.profile.PrimaryEmail);
                    console.log('Your unique ID is ' + response.profile.CustomerId);
                    if (window.console && window.console.log)
                        window.console.log(response);
                });
            });
        });
    }