Remove delfi ads

Cause nobody wants to see them

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Remove delfi ads
// @namespace    http://tampermonkey.net/
// @version      1.1
// @author       TheBlaster1337
// @description  Cause nobody wants to see them
// @match        https://www.delfi.lt/*
// @grant        none
// @icon         https://www.google.com/s2/favicons?sz=64&domain=delfi.lt
// @license      GNU GPLv3
// ==/UserScript==

(function() {
    'use strict';

    const blockedPrefix = 'https://www.delfi.lt/misc/export/qwerty/';

    // Block fetch
    const originalFetch = window.fetch;
    window.fetch = function(input, init) {
        const url = typeof input === 'string' ? input : input.url;
        if (url && url.startsWith(blockedPrefix)) {
            console.log('[BLOCKED - fetch]', url);
            return new Promise(() => {});
        }
        return originalFetch.apply(this, arguments);
    };

    // Block XMLHttpRequest
    const originalXHROpen = XMLHttpRequest.prototype.open;
    XMLHttpRequest.prototype.open = function(method, url) {
        if (url && url.startsWith(blockedPrefix)) {
            console.log('[BLOCKED - XHR]', url);
            return;
        }
        return originalXHROpen.apply(this, arguments);
    };

    // Remove elements with background-image that includes the blocked URL
    function removeElementsWithBlockedBackgrounds(root = document.body) {
        if (!root || !root.querySelectorAll) return;

        const elements = root.querySelectorAll('*');
        elements.forEach(el => {
            const style = window.getComputedStyle(el);
            const bg = style.getPropertyValue('background-image');
            if (bg && bg.includes(blockedPrefix)) {
                console.log('[REMOVED - background-image]', bg);
                el.remove();
            }
        });
    }

    // Observe DOM for dynamic injections
    const observer = new MutationObserver(mutations => {
        mutations.forEach(mutation => {
            mutation.addedNodes.forEach(node => {
                if (!(node instanceof HTMLElement)) return;

                const src = node.src || '';
                if (src.startsWith(blockedPrefix)) {
                    console.log('[REMOVED - dynamic src]', src);
                    node.remove();
                    return;
                }

                removeElementsWithBlockedBackgrounds(node);
            });
        });
    });

    observer.observe(document.documentElement || document.body, {
        childList: true,
        subtree: true
    });

    // Initial scan
    window.addEventListener('load', () => {
        removeElementsWithBlockedBackgrounds();
    });

    console.log('✅ Delfi Ad blocker active');
})();