facebook login in mobile devices

facebook login does not work in mobile brower

but if we try it using with the facbook login pop up in desktop site setting it works

otherwise rather then doing what code says the facebbok login is forwared to a new callback url which is a white blank page and when reloading it forwareds to failed callback url which probably is due to loss of some parameters on reload

Start by reproducing the Facebook login failure in a mobile browser and tracing the callback URL and parameters through the login entry point. Done means the mobile login completes successfully without reaching a blank page or failed callback URL.

Written by the indexing model from the issue text.