facebook - FB add friend dialog on mobile doesnt work -

Using Friend Friend Dial Facebook to connect a friend to my friend It works fine from desktop, But when I try to use it with my mobile app, I get error 500 response from the server.

Desktop Friends Dialog (works)

https: //www.facebook.com/dialog/friends? APIID = App ID and id = UserID and Redirect_urray = https: //www.facebook.com/connect/login_success.html

Mobile Friend Communication (Error 500)

https://m.facebook.com/dialog/friends?app_id=appId&id=userId&redirect_uri=https://www. Facebook.com/connect/login_success.html

As you can only do the difference, what is the other way to send friend requests from mobile in the prefix?

In the mobile side, & amp; Amp; Is your problem sure that this & amp; Only - The Facebook URL does not clean, but they used to do so.