Prevent webbrowser from automatically playing/downloading HTML5 videos
// ==UserScript==
// @name Disable HTML5 Videos autoplay/autopreload
// @namespace default
// @include *
// @version 2.0
// @grant none
// @description Prevent webbrowser from automatically playing/downloading HTML5 videos
// ==/UserScript==
document.addEventListener("DOMContentLoaded", function(e) {
var disable_videos = function() {
var videos = document.getElementsByTagName("video");
if (document.readyState !== "interactive") {
Array.forEach(videos, function(video) {
if (!video.getAttribute("gm_processed")) return;
//Now that document has completed loading, bring back video's original url
video.setAttribute("src", video.getAttribute("gm_src"));
video.pause();
video.removeAttribute("gm_processed");
});
return;
}
setTimeout(disable_videos, 1000);
Array.forEach(videos, function(video) {
if (video.getAttribute("gm_processed")) return;
var old_url = video.currentSrc;
//Only process a video if it has "src" but not one starting with mediasource:
if (old_url && (!old_url.startsWith("mediasource:"))) {
console.log("GMoneky: disabling autoplay for ", video);
video.removeAttribute("autoplay");
video.removeAttribute("autobuffer");
video.setAttribute("preload", "metadata");
video.setAttribute("src", "about:blank");
video.setAttribute("gm_src", old_url);
video.setAttribute("gm_processed", true);
}
});
};
disable_videos();
});