使用Facebook登录插件时指定redirect\u uri

最初,我使用以下代码使用Facebook进行身份验证:

https://www.facebook.com/dialog/oauth?client_id=xxx&redirect_uri=http://anotherurl.com/example&scope=public_profile,email

我现在也在尝试做同样的事情,但是通过这里的Facebook登录插件:

https://developers.facebook.com/docs/facebook-login/web/login-button/

这给了我以下代码:

<div id="fb-root"></div>
<script>(function(d, s, id) {
        var js, fjs = d.getElementsByTagName(s)[0];
        if (d.getElementById(id)) return;
        js = d.createElement(s); js.id = id;
        js.src = 'https://connect.facebook.net/en_GB/sdk.js#xfbml=1&version=v2.10&appId=xxxx';
        fjs.parentNode.insertBefore(js, fjs);
    }(document, 'script', 'facebook-jssdk'));</script>

    <div class="fb-login-button" data-max-rows="2" data-size="large" data-button-type="login_with" data-show-faces="true"
         data-auto-logout-link="false" data-use-continue-as="true" data-scope="public_profile,email"></div>
</div>

我该怎么做?