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<!doctype html>
<title>Test for Bug 545812</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<script>
SimpleTest.waitForExplicitFinish();
(async function() {
await SpecialPowers.pushPrefEnv({
set: [["dom.meta-viewport.enabled", true]]
});
let win = window.open("file_fullscreen_meta_viewport.html", "", "width=500,height=500,scrollbars=yes");
await SimpleTest.promiseFocus(win);
is(win.innerWidth, 980, "Meta viewport should be in effect");
let element = win.document.querySelector("#player");
await SpecialPowers.wrap(element).requestFullscreen();
ok(win.document.fullscreen, "Window should be in fullscreen");
is(win.document.fullscreenElement, element, "#player should be the fullscreen element");
is(win.innerWidth, screen.width, "Should be fullscreen (w)");
is(win.innerHeight, screen.height, "Should be fullscreen (h)");
is(element.clientWidth, win.innerWidth, "Element should fill the viewport vertically");
is(element.clientHeight, win.innerHeight, "Element should fill the viewport vertically");
SpecialPowers.wrap(win.document).exitFullscreen();
win.close();
SimpleTest.finish();
}())
</script>
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