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Bypass CliffsNotes Premium

Removes premium paywall popups, blur effects, and overlays on CliffsNotes study notes and documents, allowing full access to previews without subscription.

Verzia zo dňa 17.10.2025. Pozri najnovšiu verziu.

// ==UserScript==
// @name         Bypass CliffsNotes Premium
// @name:zh-CN   绕过 CliffsNotes 高级会员
// @namespace    https://greasyfork.org/users/1512314
// @version      1.0
// @description  Removes premium paywall popups, blur effects, and overlays on CliffsNotes study notes and documents, allowing full access to previews without subscription.
// @description:zh-CN 移除 CliffsNotes 学习笔记和文档上的高级会员付费墙弹窗、模糊效果和覆盖层，让您无需订阅即可完全访问预览。
// @author       user81829132
// @match        https://www.cliffsnotes.com/*
// @icon         https://www.google.com/s2/favicons?domain=cliffsnotes.com
// @grant        none
// @run-at       document-end
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';

    function removePremiumElements() {
        // Remove the main premium popup
        const mainPopup = document.querySelector('div.tw-py-16.tw-px-32.tw-bg-black.tw-text-white.tw-rounded-lg.tw-flex.tw-flex-col.tw-items-center.-tw-mt-\\[52rem\\]');
        if (mainPopup) {
            mainPopup.remove();
        }

        // Remove the blur overlay - broad selector to catch with or without tw-backdrop-blur-sm
        const blurOverlays = document.querySelectorAll('div.tw-absolute.tw-top-0.tw-left-0.tw-w-full.tw-h-full');
        blurOverlays.forEach(overlay => {
            overlay.remove();
        });

        // Remove the "Why is this page out of focus?" popup
        const focusPopup = document.querySelector('div.tw-w-4\\/5.tw-text-center.tw-py-24');
        if (focusPopup) {
            focusPopup.remove();
        }

        // Also target any elements with backdrop-blur-sm class to unblur content
        const blurredElements = document.querySelectorAll('.tw-backdrop-blur-sm');
        blurredElements.forEach(el => {
            el.classList.remove('tw-backdrop-blur-sm');
            el.style.backdropFilter = 'none';
            el.style.filter = 'none';
            el.style.webkitBackdropFilter = 'none';
            el.style.webkitFilter = 'none';
        });

        // Hide any remaining premium modals or overlays by adding a style
        let style = document.getElementById('bypass-cliffsnotes-style');
        if (!style) {
            style = document.createElement('style');
            style.id = 'bypass-cliffsnotes-style';
            style.textContent = `
                div[class*="premium"], div[class*="paywall"], div[class*="subscription"] {
                    display: none !important;
                }
                .tw-backdrop-blur-sm {
                    filter: none !important;
                    backdrop-filter: none !important;
                    -webkit-filter: none !important;
                    -webkit-backdrop-filter: none !important;
                }
                /* Extra override for any full-screen overlays */
                div.tw-absolute.tw-top-0.tw-left-0.tw-w-full.tw-h-full {
                    display: none !important;
                }
                /* Ensure document content is not blurred */
                [class*="html-preview"], [class*="document-content"], .t, .s0_1, .s1_1, span[class*="t"] {
                    filter: none !important;
                    backdrop-filter: none !important;
                }
            `;
            document.head.appendChild(style);
        }
    }

    // Run immediately
    removePremiumElements();

    // Observe for dynamic additions (in case popups load later)
    const observer = new MutationObserver(removePremiumElements);
    observer.observe(document.body, { childList: true, subtree: true });

    // Also run after short delays for any async loads, including later pages
    setTimeout(removePremiumElements, 1000);
    setTimeout(removePremiumElements, 3000);
    setTimeout(removePremiumElements, 5000);

    // Periodic check for multi-page docs
    const interval = setInterval(() => {
        removePremiumElements();
    }, 2000);

    // Stop interval after 30 seconds if no more issues
    setTimeout(() => clearInterval(interval), 30000);
})();