无法获得'edge.create'回调以与Facebook javascript SDK一起使用 [英] Can't get 'edge.create' callback to work with facebook javascript SDK
问题描述
我正在尝试使用Facebook javascript SDK的'edge.create'回调函数在用户单击页面上的赞"按钮时发送警报.最终，我的目标是在页面上重新生成样式，以便单击时可以动态调整Facebook小部件div的大小.即使对于警报，我也无法使回调工作.
I'm trying to use the 'edge.create' callback function of the Facebook javascript SDK to send an alert when a user clicks the like button on a page. Ultimately my goal is to have it regenerate styles on the page so that it can resize the facebook widget div dynamically when clicked. I cannot get the callback to work even for the alert though.
<html lang="en">
<head>
<title></title>
<script src="http://connect.facebook.net/en_US/all.js#appId=216985861663967&xfbml=1"></script>
<script>
FB.Event.subscribe('edge.create', function() {
alert('Liked');
});
</script>
</head>
<body>
<div id="fb-root"></div>
<fb:like send="false" layout="button_count" show_faces="false" font=""></fb:like>
</body>
</html>
有什么想法为什么不起作用?单击该按钮时，将显示错误:
Any ideas why this isn't working? When the button is clicked it gives the error:
不安全的JavaScript尝试访问带有URL的框架
Unsafe JavaScript attempt to access frame with URL
后来说，域，协议和端口必须匹配.
and later says Domains, protocols and ports must match.
推荐答案
根据您的描述，我猜您是在本地服务器上的Chrome/Safari中进行测试的吗?
From your description I'm guessing you're testing in Chrome/Safari on a local server?
尝试将喜欢"按钮的URL设置为现有的网址:
Try setting your Like Button URL to an existing Web address:
<fb:like href="http://google.com" ...
重要的一点是，警报取决于Like的成功，这取决于Facebook可以访问的URL.您将无法喜欢仅在本地服务器上存在的URL(例如 http://localhost :3000/my-page.html ).显然，喜欢Google是一个测试修复程序；您可以将代码推送到登台服务器以达到相同的效果，但是这需要更多的时间和精力.
An important note is that the alert depends on the Like's success, which depends on the URL being reachable by Facebook. You won't be able to Like a URL that only exists on your local server (ex. http://localhost:3000/my-page.html). Obviously Liking Google is a test fix; you can instead push your code to a staging server for the same effect, but it takes more time and effort.
当我进行此更改时，赞"按钮和警报在Mac的Chrome 12中起作用，但仍然看到与您相同的错误.我认为Chrome只是对iframe敏感；我怀疑该错误是否可以避免.
When I make this change the Like Button and alert work in Chrome 12 for Mac, but I still see the same error as you. I think Chrome is just sensitive with iframes; I doubt the error can be avoided.
如果我进行了上述更改，则在Mac版Firefox 5中仍然无法使用.我从Facebook的all.js中收到错误e.root is undefined，并且赞"按钮甚至没有出现.
If I make the above change, it still doesn't work in Firefox 5 for Mac. I get the error e.root is undefined from Facebook's all.js and the Like Button doesn't even appear.
如果将all.js和FB.Event.subscribe()脚本移到fb-root div下方，则会显示赞"按钮，并且警报将正常运行.
If I move the all.js and FB.Event.subscribe() scripts below the fb-root div, the Like Button shows up and the alert works with no errors.
根据 Facebook的文档，您需要将Facebook的XML名称空间添加到
According to Facebook's documentation you need to add Facebook's XML namespace to your <html> tag for the button to render in Internet Explorer:
<html lang="en" xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml">
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