无法使用facebook的api登录网站

Question

I have some php code which worked nicely on my old server. I have moved the php code to a new server, and now I can no longer use the facebook api's to log into my site using a facebook login.

Here is a screenshot of what happens on the new server:

Larger version here.

I have checked apache's error.log file and I see no error messages.

Why would this be happening on a new server?

Answer 1

There are many reasons for this

• check that domains match in code and in settings
• check that urls match in code and in settings
• check that login urls for authentication match
• check that the app secret has not changed
• check that sandbox mode is off
• check for access of app from a developer account and not a testing account
• check if the url you are taking the user to, has all the required data.