import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
150858 changed files with 23884658 additions and 0 deletions

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<!DOCTYPE html>
<html>
<head>
</head>
<body>
<div id="container"><div id="host"></div></div>
<script>
var host = document.getElementById("host");
var root = host.createShadowRoot();
root.innerHTML = 'inside shadow DOM';
var container = document.getElementById("container");
container.removeChild(host);
container.appendChild(host);
</script>
</body>
</html>