Go-Back-No-Popup.txt

// ==UserScript==
// @name         URL Change Alert
// @namespace    https://github.com/NullPounce
// @version      1.0
// @description  goes back one page without notice if the user changes urls twice witin 10 seconds.
// @author       Your Name
// @match        *://*/*
// @grant        none
// ==/UserScript==
let urlChanges = 0;
let lastUrl = window.location.href;
let timerId;

setInterval(function() {
    if (window.location.href !== lastUrl) {
        urlChanges++;
        lastUrl = window.location.href;
        if (urlChanges >= 2) {
            let popup = document.createElement('div');
            popup.textContent = 'You have changed URLs 2 times within 10 seconds. You will be redirected to the previous page in 3 seconds...';
            popup.style.position = 'fixed';
            popup.style.bottom = '50px';
            popup.style.left = '50%';
            popup.style.transform = 'translate(-50%, 0)';
            popup.style.backgroundColor = 'white';
            popup.style.padding = '10px';
            document.body.appendChild(popup);

            let closePopup = function() {
                popup.parentNode.removeChild(popup);
                clearInterval(timerId);
            };

            timerId = setInterval(function() {
                closePopup();
                history.back();
                urlChanges = 0;
            }, 3000);

            popup.addEventListener('click', function() {
                closePopup();
                history.back();
                urlChanges = 0;
            });
        }
    } else {
        urlChanges = 0;
        if (!timerId) {
            timerId = setTimeout(function() {
                urlChanges = 0;
                timerId = null;
            }, 10000);
        }
    }
}, 5000);