https://developers.facebook.com/bugs/245362365535898?browse= search_4f112135664703a96454690
这是JS SDK中的一个错误，现在已经修复了，它应该推得不会太长。

在那之前你可以做以下事情

https://developers.facebook.com/bugs/245362365535898?browse=search_4f112135664703a96454690 This is a bug in the JS SDK that has now been fixed and it should get pushed in not too long.
Until then you can do the following

FB.logout(function(response) {
  FB.Auth.setAuthResponse(null, 'unknown');
  ...
});