https://secure.arinsights.com/js/login-page-session-monitor.js

1var cookieName = 'idsrv.session';
2var intialSessionId = getBrowserSessionId();
3var interval = setInterval(() => {
4    if (intialSessionId !== getBrowserSessionId()) {
5        window.location.href = getRedirectUrlOrigin();
6    }
7}, 3000);
8
9document.getElementById('loginForm').addEventListener('submit', () => {
10    clearInterval(interval);
11})
12
13function getBrowserSessionId() {
14    var cookies = getCookies().filter(function (cookie) {
15        return (cookie.name === cookieName);
16    });
17    // empty string represents anonymous sid
18    return (cookies[0] && cookies[0].value) || '';
19}
20
21function getCookies() {
22    var allCookies = document.cookie;
23    var cookies = allCookies.split(';');
24    return cookies.map(function (value) {
25        var parts = value.trim().split('=');
26        if (parts.length === 2) {
27            return {
28                name: parts[0].trim(),
29                value: parts[1].trim()
30            };
31        }
32    }).filter(function (item) {
33        return item && item.name && item.value;
34    });
35}
36
37function getRedirectUrlOrigin() {
38    let res = '/account/loggedout';
39    let returnUrl = findQueryParamIgnoreCase(window.location.search, 'returnurl');
40    if (returnUrl) {
41        let redirectUri = findQueryParamIgnoreCase(returnUrl.slice(returnUrl.indexOf('?'), returnUrl.length), 'redirect_uri');
42        if (redirectUri) {
43            let idx = redirectUri.indexOf("/", redirectUri.indexOf("//") + 2);
44            res = redirectUri.substr(0, idx);
45        }
46    }
47    return res;
48}
49
50function findQueryParamIgnoreCase(paramsStr, param) {
51    let searchParams = new URLSearchParams(paramsStr);
52    let entry = Array.from(searchParams.entries()).find(([k, _]) => k.toLowerCase() == param.toLowerCase());
53    return entry != undefined ? entry[1] : null;
54}