tiktok-bypass.user.js

// ==UserScript==
// @name         bypass tiktok block
// @namespace    http://tampermonkey.net/
// @version      2025-01-19
// @description  replaces the `store-country-code` cookie with a non-US one
// @author       jj
// @match        https://www.tiktok.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=tiktok.com
// @grant        GM_cookie
// ==/UserScript==

(function() {
    'use strict';

    const fixCookie = () => {
        GM_cookie.list(
            { url: 'https://www.tiktok.com/', name: 'store-country-code' },
            (cookies, error) => {
                const cookie = cookies[0];

                if (!error) {
                    if (cookie?.value === 'us') {
                        cookie.value = ['au', 'ie', 'gb', 'ca'][Math.floor(Math.random() * 4)];
                        GM_cookie.set(cookie, err => {
                            if (err) {
                                alert('fail');
                            }
                        });
                    }

                    if (window.location.pathname === '/us-landing') {
                        window.location.pathname = '/';
                    }
                } else console.error(error);
            }
        );

        setTimeout(fixCookie, 500);
    }

    fixCookie();
})();