https://latepoint.com/wp-content/plugins/suretriggers/assets/js/st-trigger-button.js?ver=1.1.39

1function st_get_cookie(cookieName) { 
2    const regex = new RegExp(cookieName + '=([^;]+)'); 
3    const cookieValue = document.cookie.match(regex); 
4    return cookieValue ? cookieValue[1] : null; 
5}
6
7function st_trigger_ajax(element) {
8    var button = element;
9    button.disabled = true;
10    var form = button.closest("form");
11    var formData = new FormData(form);
12
13    var inputTriggerId = button.parentNode.querySelector('input[name="st_trigger_id"]');
14    var inputLoadingLabel = button.parentNode.querySelector('input[name="st_loading_label"]');
15    var inputClickedLabel = button.parentNode.querySelector('input[name="st_clicked_label"]');
16    var inputButtonLabel = button.parentNode.querySelector('input[name="st_button_label"]');
17    var inputUserId = button.parentNode.querySelector('input[name="st_user_id"]');
18
19    var cookiename = 'st_trigger_button_clicked_' + inputTriggerId.value;
20    var cookie = 'yes_' + inputUserId.value;
21    var cookieValue = st_get_cookie(cookiename);
22
23    if (cookieValue === null || cookieValue !== cookie) {
24        button.classList.add('st_trigger_button_loading');
25        if (inputLoadingLabel.value !== '') {
26        button.textContent = inputLoadingLabel.value;
27        }
28        var xhr = new XMLHttpRequest();
29        xhr.open('POST', st_ajax_object.ajax_url);
30        xhr.onreadystatechange = function() {
31            if (xhr.readyState === XMLHttpRequest.DONE) {
32                if (xhr.status === 200) {
33                    button.classList.remove('st_trigger_button_loading');
34                    button.disabled = false;
35                    if (inputClickedLabel.value !== '') {
36                        button.textContent = inputClickedLabel.value;
37                    } else {
38                        button.textContent = inputButtonLabel.value;
39                    }
40                    if( xhr.responseText != '' ){
41                        var response = JSON.parse(xhr.responseText);
42                        const parsed = new URL(response.data);
43						if (['http:', 'https:'].includes(parsed.protocol)) {
44							const redirectencodedURL = encodeURI(parsed.href);
45							try {
46								const redirectURL = decodeURI(redirectencodedURL);
47								window.location.href = redirectURL;
48							} catch (e) {
49								console.error(e);
50							}
51						}
52                    }
53                }
54            }
55        };
56        xhr.send(formData);
57    } else {
58        if (inputClickedLabel.value !== '') {
59            button.textContent = inputClickedLabel.value;
60        }
61    }
62}