Problem authenticating with OAuth when login cookie is sent

[PudyJapan]

Hi,

I am using a unity client with webview on iOS/Android. It works great on Android, but had problem with iOS.
I spent a lot of time trying to figure out what is the problem, and I found out that iOS sends the cookie it received when logged into the webview along with the rest api call.
That prevents OAuth to determine current user, and is_logged_in becomes false.
I fixed it by setting a dummy cookie header with my rest api call to prevent the disruption of the authorization and determination of user flow, but that's too much hacky.

I am not sure what is the ideal solution, but perhaps the cookie authentication should work?

Any help is greatly appreciated.