oidc-client-js after browser is closed for a while I have to relogin again in mobile browsers

I have a Angular app setup with oidc-client-js + IdentityServer4 , Everything is fine in desktop environment and silent refresh works as it should ...

But when using mobile device browsers , If I don't use the app for a while when I come back I have to login again (enter user/pass)

Is there anything happening differently when oidc detects a mobile device? This is happening on ios and android and they are not using private browsing or incognito mode !?!

this is my config :

this._userStore = new WebStorageStateStore({ store: window.localStorage, prefix: '_oidc_' });

 return {        userStore                          : this._userStore,        authority                          : environment.authUrl,        client_id                          : "angular",        redirect_uri                       : baseHref + '/authenticate',        post_logout_redirect_uri           : baseHref,        response_type                      : "code",        scope                              : "openid profile offline_access",        filterProtocolClaims               : true,        loadUserInfo                       : true,        automaticSilentRenew               : true,        silent_redirect_uri                : baseHref + '/silent-refresh.html',      };  

https://stackoverflow.com/questions/67411697/oidc-client-js-after-browser-is-closed-for-a-while-i-have-to-relogin-again-in-mo May 06, 2021 at 12:05PM