Question

Facebook gives a clear example of how to handle expired tokens in php: https://developers.facebook.com/blog/post/500 . Does anyone have code to the same thing in javascript?

Answer 1

All the example does in your posted blog link is to attempt to query the graph and if that fails it reconnects the user. And in the JavaScript SDK this is handled by FB.login.

For Example:

FB.api('/me', function(response) {
    if (response.error && response.error.type == "OAuthException" ) {
        FB.login(function(response) {
            ....
        }, {scope: 'YOUR,REQUIRED,PERMISSIONS'});
    }
});