switch between tabs without informing the sites
// ==UserScript==
// @name Block Visibility Detections
// @namespace http://twitter.com/D4D4K
// @version 0.1.01
// @description switch between tabs without informing the sites
// @author Dadak
// @match *://*/*
// @grant none
// ==/UserScript==
/*jshint esversion: 6 */
var s = document.createElement('script');
s.textContent =
'(function() {' +
'var a = Node.prototype.addEventListener;' +
'Node.prototype.addEventListener = function(e) {' +
"if (e !== 'visibilitychange' && e !== 'webkitvisibilitychange') {" +
'a.apply(this, arguments)' +
'}}' +
'})()'
;
(document.head || document.documentElement).appendChild(s);
s.remove();
Object.defineProperty(document, "hidden", { value : false});
for (var event_name of ["visibilitychange", "webkitvisibilitychange", "blur"]) {
window.addEventListener(event_name, function(event) {
event.stopImmediatePropagation();
}, true);
}