我已将 Facebook OAuth 登录集成到我的网站中。我使用了 Facebook 文档中指定的相同脚本，但弹出窗口出现空白屏幕。在检查浏览器控制台时，我可以看到以下错误消息。我使用了文档中指定的相同脚本并替换了 APPID 和 Graph API 版本。我使用 v19.0 作为 Graph API 版本。
ErrorUtils 捕获错误：
缩小不变式#21945；
后续的非致命错误将不会被记录；看 https://fburl.com/debugjs。
我使用了以下代码，
<!DOCTYPE html>
<html>
<head>
<title>Facebook Login JavaScript Example</title>
<meta charset="UTF-8">
</head>
<body>
<script>
function statusChangeCallback(response) { // Called with the results from FB.getLoginStatus().
console.log('statusChangeCallback');
console.log(response); // The current login status of the person.
if (response.status === 'connected') { // Logged into your webpage and Facebook.
testAPI();
} else { // Not logged into your webpage or we are unable to tell.
document.getElementById('status').innerHTML = 'Please log ' +
'into this webpage.';
}
}
function checkLoginState() { // Called when a person is finished with the Login Button.
FB.getLoginStatus(function(response) { // See the onlogin handler
statusChangeCallback(response);
});
}
window.fbAsyncInit = function() {
FB.init({
appId : 'APPID',
cookie : true, // Enable cookies to allow the server to access the session.
xfbml : true, // Parse social plugins on this webpage.
version : 'v19.0' // Use this Graph API version for this call.
});
FB.getLoginStatus(function(response) { // Called after the JS SDK has been initialized.
statusChangeCallback(response); // Returns the login status.
});
};
function testAPI() { // Testing Graph API after login. See statusChangeCallback() for when this call is made.
console.log('Welcome! Fetching your information.... ');
FB.api('/me', function(response) {
console.log('Successful login for: ' + response.name);
document.getElementById('status').innerHTML =
'Thanks for logging in, ' + response.name + '!';
});
}
</script>
<!-- The JS SDK Login Button -->
<fb:login-button scope="public_profile,email" onlogin="checkLoginState();">
</fb:login-button>
<div id="status">
</div>
<!-- Load the JS SDK asynchronously -->
<script async defer crossorigin="anonymous" src="https://connect.facebook.net/en_US/sdk.js"></script>
</body>
</html>
由于它在 Firefox 上运行良好，我相信这是他们这边的一个错误。如果您在调试模式下运行，您会看到以下错误：
facebook.js:35 Uncaught TypeError: Failed to construct 'URL': Invalid URL
at cleanLink (facebook.js:35:11)
at onMutation (utils.js:38:7)
at Array.forEach (<anonymous>)
at MutationObserver.observe.childList (utils.js:62:15)