我在登录 facebook 时遇到问题，我不断收到错误代码：在 FB.init() 之前调用了 FB.login()。我做了各种各样的事情，但不断收到错误。这是html代码：
<!-- Javascript
=================================================== -->
<script src="//connect.facebook.net/en_US/all.js"></script>
<script src="js/facebook.js"></script>
</head>
<body>
<div id="fb-root"></div>
<script>
var email;
var name;
window.fbAsyncInit = function()
{
FB.init({
appId : '509855929050339', // App ID
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});
FB.Event.subscribe('auth.login', function () {
window.location = "http://webs.hogent.be/~096506gd/home.html";
});
FB.getLoginStatus(function(response) {
if (response.status === 'connected') {
// the user is logged in and has authenticated your
// app, and response.authResponse supplies
// the user's ID, a valid access token, a signed
// request, and the time the access token
// and signed request each expire
var uid = response.authResponse.userID;
var accessToken = response.authResponse.accessToken;
window.location = "http://webs.hogent.be/~096506gd/home.html";
} else if (response.status === 'not_authorized') {
// the user is logged in to Facebook,
// but has not authenticated your app
} else {
// the user isn't logged in to Facebook.
}
});
};
// Load the SDK asynchronously
(function(d){
var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
ref.parentNode.insertBefore(js, ref);
}(document));
</script>
<div class="container">
<img class="offset-by-three ten columns margin-top25" src="images/logo.png">
<div class="offset-by-five">
<a class="six columns full-width button margin-top175" href="home.html">
Aanmelden
</a>
<a class="six columns full-width button margin-top175" onclick="loginUser()">
Aanmelden met facebook
</a>
</div>
</div>
</body>
</html>
这是javascript文件：
function loginUser(){
FB.login(function(response) {
if (response.authResponse) {
console.log('Welcome! Fetching your information.... ');
//console.log(response); // dump complete info
access_token = response.authResponse.accessToken; //get access token
user_id = response.authResponse.userID; //get FB UID
FB.api('/me', function(response) {
alert ("email: "+response.email); //get user email
alert ("naam : "+respone.name);
// you can store this data into your database
});
} else {
//user hit cancel button
console.log('User cancelled login or did not fully authorize.');
}
}, {
scope: 'publish_stream,email'
});
}