Auto Loop HTML5 Videos

Automatically loops HTML5 videos when they finish

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Wrap lines

// ==UserScript==
// @name         Auto Loop HTML5 Videos
// @namespace    https://greasyfork.org/users/yourname
// @version      1.1
// @description  Automatically loops HTML5 videos when they finish
// @author       You
// @license      MIT
// @match        *://*/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    function enableLoop(video) {
        if (!video || video.dataset.autoLoopApplied) return;

        // Enable native looping
        video.loop = true;

        // Fallback restart in case site disables loop
        video.addEventListener('ended', function() {
            video.currentTime = 0;
            video.play().catch(() => {});
        });

        video.dataset.autoLoopApplied = "true";
    }

    function scanForVideos() {
        document.querySelectorAll('video').forEach(enableLoop);
    }

    // Initial scan
    scanForVideos();

    // Observe dynamically added videos
    const observer = new MutationObserver(() => {
        scanForVideos();
    });

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

})();