Facebook cookie issue in IE9 and Chrome and FacebookWebClient initialization

I am playing with Facebook C# SDK to use with ASP>NET application, and was using FacebookWebContext.Current.IsAuthorized method after login on client side with JavaScript SDk to procceed with further actions (retrieve user info, friends list,etc). It was working on beginning but suddenly stop about week ago. FacebookWebContext.Current.IsAuthorized method is always false now. Checking further found t开发者_StackOverflowhat its working in Safari and Firefox 4, but fails in IE9 and Chrome.

It seems that IE9 doens't see facebook cookie like fbs_ApplicationID. Testing different examples in JavaSDk console on Facebook site shows that Facebook FB.Cookie.load method doesn't return any value in IE9 and Chrome.

So my question, is there other way to "auhtorize" application on a server side using SDk? Is that Facebook side issue specific to browsers? FB.login callback function does return session info, but how I can use it then on server side to activate FacebookWebClient?

I have the same problem, but the behavior is very odd. It was working yesterday and now not working in Chrome and IE9. The fbWebContext.AccessToken is null and there's no fbs_xxxxx cookie. It's fine in Firefox and Safari.

Here's my code:

        var fbWebContext = FacebookWebContext.Current;
        var app = new FacebookWebClient(fbWebContext);
        dynamic fbUser = app.Get("me");