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 class="reftest-wait">
<!-- Test: if button has a custom error, it should not be affected by :valid
pseudo-class -->
<link rel='stylesheet' type='text/css' href='style.css'>
<body onload="document.getElementById('b').setCustomValidity('foo'); document.documentElement.className='';">
<button class='invalid' id='b'></button>
</body>
</html>