public async Task Logout(string token) { var client = new HttpClient(); //some servers could not support var result = await client.GetAsync(GetRevokeUri(_settingsProvider, token)); if (!result.IsSuccessStatusCode) { return; } if (_adalPage != null) { _adalPage.HybridWebView.ClearCookies(null); } else { var hybridWebView = new HybridWebView(); hybridWebView.ClearCookies(null); } }