找到了解决方案(很高兴得知其是否为有效解决方案)

Found a solution (will be happy to hear if its a valid solution)

在facebook应用(developer.facebook.com)中->设置->高级->您的应用秘密是否已嵌入->设置为否"，问题已解决！

In the facebook app (developer.facebook.com) -> Settings -> Advanced -> Is your app secret embedded -> Set to "No" and problem solved!