https://takismarakakis.com/catalog/view/javascript/isenselabs_gdpr/utils.js?v=14218c54

1var isenselabs_gdpr_path = 'extension/module/isenselabs_gdpr';
2
3$(document).ready(function() {
4    $.ajax({
5        url: 'index.php?route=' + isenselabs_gdpr_path + '/getOptinsSettings',
6        type: 'get',
7        data: {},
8        dataType: 'json',
9        success: function(resp) {
10            if (!resp.error && resp.data.enabled && ($('form[action*="information/contact"]').length == 1 || $('form textarea[name="enquiry"]').length == 1)) {
11                var checkbox_html = '<label><input type="checkbox" name="optin_agree" value="1" /> ' + resp.data.text_optin_checkbox + '</label>';
12                var form = $('textarea[name="enquiry"]').parents('form');
13                var textarea = form.find('textarea[name=enquiry]');
14                if(textarea.next('.text-danger').length > 0) {
15                    textarea.next('.text-danger').after(checkbox_html);
16                } else {
17                    textarea.after(checkbox_html);
18                }
19				if(typeof Journal == 'object') {
20					form.find('input[name=optin_agree]').parent('label').css('width', '100%');
21				}
22
23                form.on('submit', function(e) {
24                    e.preventDefault();
25
26                    var option_checkbox = form.find('input[name="optin_agree"]');
27                    if (!option_checkbox.is(':checked')) {
28                        alert(resp.data.text_optin_error);
29                    } else {
30						this.submit();
31                    }
32                });
33                
34            }
35        }
36    });
37});