https://pokemori.jp/home/chat-bgm?20151121

1(function () {
2'use strict';
3
4var DELAY = 3 * 60 * 1000;
5
6var client = new XMLHttpRequest();
7client.addEventListener('load', function (event) {
8	var doc = event.target.responseXML;
9	if (doc) {
10		var root = doc.documentElement;
11		if (root && root.id === 'chat-counter') {
12			var old = document.getElementById('chat-counter');
13			old.parentNode.replaceChild(root, old);
14		}
15	}
16	window.setTimeout(checkChatMember, DELAY);
17});
18window.setTimeout(checkChatMember, DELAY);
19
20function checkChatMember() {
21	client.open('GET', './chat-counter');
22	client.send();
23}
24
25if (window.parent !== window && window.parent.location.origin === window.location.origin && window.parent.document.querySelector('[src$="bgm-script"]') || !('replaceState' in window.history)) {
26	// 親がBGM再生用フレーム、またはHistory#replaceStateに対応していなければ終了
27	return;
28}
29
30var button = document.getElementsByClassName('play-bgm')[0];
31button.addEventListener('click', function () {
32	window.location.replace('/home/bgm');
33});
34button.hidden = false;
35
36})();