https://falco.org/js/tabpane-persist.js

1if (typeof Storage !== 'undefined') {
2    const activeLanguage = localStorage.getItem('active_language');
3    if (activeLanguage) {
4        document
5            .querySelectorAll('.persistLang-' + activeLanguage)
6            .forEach((element) => {
7              $('#' + element.id).tab('show');
8            });
9    }
10}
11function persistLang(language) {
12    if (typeof Storage !== 'undefined') {
13        localStorage.setItem('active_language', language);
14        document.querySelectorAll('.persistLang-' + language)
15          .forEach((element) => {
16            $('#' + element.id).tab('show');
17        });
18    }
19}