https://cliente.lojafabercastell.com.br/static/scripts/dist/force-tabindex.js

1"use strict";
2document.addEventListener('DOMContentLoaded', () => {
3    const focusableTags = ['a', 'button', 'input', 'textarea', 'select', 'summary'];
4    const isVisibleAndEnabled = (el) => {
5        if (el.hasAttribute('disabled'))
6            return false;
7        if (el.hasAttribute('hidden'))
8            return false;
9        if (el.getAttribute('aria-hidden') === 'true')
10            return false;
11        const style = window.getComputedStyle(el);
12        return style.display !== 'none' && style.visibility !== 'hidden';
13    };
14    const normalizeTabIndex = () => {
15        const schedule = (cb) => window.requestIdleCallback ? window.requestIdleCallback(cb, { timeout: 500 }) : setTimeout(cb, 100);
16        schedule(() => {
17            document.querySelectorAll('[tabindex]').forEach(el => {
18                const tabindex = el.getAttribute('tabindex');
19                if (tabindex !== '0' && isVisibleAndEnabled(el)) {
20                    el.setAttribute('tabindex', '0');
21                }
22            });
23            focusableTags.forEach(tag => {
24                document.querySelectorAll(tag).forEach(el => {
25                    if (!el.hasAttribute('tabindex') && isVisibleAndEnabled(el)) {
26                        el.setAttribute('tabindex', '0');
27                    }
28                });
29            });
30        });
31    };
32    const observer = new MutationObserver(() => normalizeTabIndex());
33    normalizeTabIndex();
34    observer.observe(document.body, { childList: true, subtree: true });
35});