Facebook login on page app using php sdk

Question

I have prepared a Facebook login for an application installed in page, the problem is when I click on the "login" button on the page it redirect to a blank white page, without connecting, but when i open the app with the direct link " https://example.com/my-app ", the login is working good without any problems and the user keep being connected after approving the app;

I am working with :

• codeigniter 3.0
• Facebook PHP SDK v4
• PHP 5.4
• Facebook Scope : public_profile, email

Answer 1

将target="_top"添加到iframe中的登录链接，以使其重定向到顶部窗口实例中的登录页面。