[Urgent] Cookie generation after authorizing the app by user


Dear all,
I want to get one information regarding cookie generation.
I am developing twitter app on mobile. When i followed the oauth1.0a step, i can get the access_token from server.

But, i am not getting the cookie session.
That’s mean when user input id/pw for authorizing with webview, cookie is not generating.

According to my knowledge, it should be set.
In case of pc UA and pc twitter site, it is working.

Only mobile UA and mobile twitter site is not working.
Anyone can share the solution to fix that issue.