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Test Info:
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>meta viewport test</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<meta name="viewport" content="width=device-width, minimum-scale=1, maximum-scale=0">
<script src="viewport_helpers.js"></script>
</head>
<body>
<p>width=device-width, minimum-scale=1, maximum-scale=0</p>
<script type="application/javascript">
"use strict";
add_task(async function test1() {
await SpecialPowers.pushPrefEnv(scaleRatio(1.0));
let info = getViewportInfo(800, 480);
is(info.maxZoom, 1, "maximum_scale should be clamped");
is(info.defaultZoom, 1, "initial scale should be 1");
is(info.minZoom, 1, "minimum scale should be 1");
is(info.width, 800, "width should be 800");
is(info.height, 480, "height should be 480");
});
</script>
</body>
</html>