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
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<!doctype html>
<title>Custom event on an element in another document</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
<script>
test(function() {
var doc = document.implementation.createHTMLDocument("Demo");
var element = doc.createElement("div");
var called = false;
element.addEventListener("foo", this.step_func(function(ev) {
assert_false(called);
called = true;
assert_equals(ev.target, element);
}));
doc.body.appendChild(element);
var event = new Event("foo");
element.dispatchEvent(event);
assert_true(called);
});
</script>