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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=200, minimum-scale=1.0, initial-scale=2.0">
<title>Tests that the layout viewport is expanted to the minimum scale size (minimim-scale >= 1.0)</title>
<script type="application/javascript" src="apz_test_utils.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
<style>
html,body {
overflow-x: hidden;
margin: 0;
}
div {
position: absolute;
}
</style>
</head>
<body>
<div style="width: 200%; height: 200%; background-color: green"></div>
<div style="width: 100%; height: 100%; background-color: blue"></div>
<script type="application/javascript">
const utils = SpecialPowers.getDOMWindowUtils(window);
async function test(testDriver) {
utils.scrollToVisual(100, 0, utils.UPDATE_TYPE_MAIN_THREAD,
utils.SCROLL_MODE_INSTANT);
const promiseForVisualViewportScroll = new Promise(resolve => {
window.visualViewport.addEventListener("scroll", () => {
resolve();
}, { once: true });
});
await waitUntilApzStable();
await promiseForVisualViewportScroll;
is(visualViewport.offsetLeft, 100,
"The visual viewport offset should be moved");
}
waitUntilApzStable().then(test).then(subtestDone, subtestFailed);
</script>
</body>
</html>
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