Application not staying logged in on IE11

Questions
1

I am integrating Okta SSO on my Asp.net 4.7 app. Everything is working so far on Chrome, but on IE11 it never recognizes that I’m already logged in, even after I just did.

Here is the important part of my code:

oktaSignIn = new OktaSignIn({
        baseUrl: "<%= Application["ssoBaseUrl"]%>",
        clientId: "<%= Application["ssoClientId"]%>",
        redirectUri: "<%= Application["ssoRedirectUri"]%>",
        authParams: {
            issuer: "<%= Application["ssoIssuer"]%>",
            responseType: ['token', 'id_token'],
            display: 'page',
        }
    });
    if (oktaSignIn.token.hasTokensInUrl()) {
        oktaSignIn.token.parseTokensFromUrl(
            function success(res) {
                //user tokenManager
            },
            function error(err) {
                console.error(err);
            }
        );
    }
    else {
        oktaSignIn.session.get(function (res) {
            if (res.status === 'ACTIVE') { //User logged in
                SSOSetup(res.login);
                return;
            }
            else { //No user logged in
                oktaSignIn.renderEl(
                    { el: '#okta-login-container' },
                    function success(res) {
                        if (res.status == "SUCCESS") {
                            return;
                        }
                    },
                    function error(err) {
                        console.error(err);
                    }
                );
            }
        });
    }

On IE11 it always goes to the new user code path, ie. status != ACTIVE

Why is it like this and how can I fix it?