iOS endsession not returning answer

So on android it works perfect. On iOS - the pop up "domain name wants to sign you in"
after conformation - the webview is open and closed but the code won't proceed.
if the user press cancel on the pop up - an exception is called, which is fine.
The logout by the way - is succeeded (I see on auth0 logs) but the code stuck (it awaits the result).
This is code:

` Future logout(String idToken) async {

String logoutUri = REDIRECT_URI;

final AuthorizationServiceConfiguration _serviceConfiguration = AuthorizationServiceConfiguration(

authorizationEndpoint: this._issuer + 'authorize',

tokenEndpoint: this._issuer + 'oauth/token',

endSessionEndpoint: this._issuer + 'v2/logout?returnTo=$logoutUri',

);

return await _appAuth.endSession(EndSessionRequest(

idTokenHint: idToken,

discoveryUrl: this._discoveryURL,

serviceConfiguration: _serviceConfiguration,

issuer: this._issuer,

preferEphemeralSession: false,

postLogoutRedirectUrl: logoutUri));
}`

So no results from _appAuth.endSession(..) although no webview is present anymore.
What to do?

Also, the cookies on Android are not deleted :(

Start at the logout method and its _appAuth.endSession(EndSessionRequest(...)) call, comparing the iOS flow with the Android behavior described. Reproduce the Auth0 logout flow and inspect whether the iOS call returns after the webview closes; done means the iOS logout returns a result and the reported Android cookie behavior is understood or corrected.

Written by the indexing model from the issue text.