I make sure the app is not authorized,go the the app page on facebook to authorize, finally the facebook logo is show with a link that says "go to facebook". Then if I click that logo or point my browser directly to https://graph.facebook.com/oauth/authorize?client_id=...&redirect_uri=http://www.example.com/oauth_redirect, I do get an authorization screen.It is so strange if it is because of the expired token(after reading one closed issue here).What's more,if i directly use the facebook api instead of fbgraph,the same problem happens. is it because the fb new api is still in development?
Facebook Open Graph API is recent, they published this API as a stable version, but IMO, still in early beta state. There is a lot of bugs, bad responses, outages,etc.
I make sure the app is not authorized,go the the app page on facebook to authorize, finally the facebook logo is show with a link that says "go to facebook". Then if I click that logo or point my browser directly to https://graph.facebook.com/oauth/authorize?client_id=...&redirect_uri=http://www.example.com/oauth_redirect, I do get an authorization screen.It is so strange if it is because of the expired token(after reading one closed issue here).What's more,if i directly use the facebook api instead of fbgraph,the same problem happens. is it because the fb new api is still in development?