Can Facebook's “Single Sign On” be achieved within a mobile web app?
问题 It's my first posting on here (although I've been using this site for reference for quite some time). I've been trying for several days now to find or dream up a way to use Facebook's "Single Sign On" from within a mobile web app (not a native iOS or Android app) to automatically sign a user into a web app if they are already logged into Facebook from the native Facebook app on their mobile device for example. My limited knowledge is telling me that it can't be done since the mobile browser