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<!DOCTYPE html>
<meta charset="utf-8" />
<meta viewport="width=device-width, initial-scale=1" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script type="module">
import {
attachIframe,
getOppositeOrientation,
} from "./resources/orientation-utils.js";
promise_test(async (t) => {
await test_driver.bless("request full screen");
await document.documentElement.requestFullscreen();
screen.orientation.addEventListener(
"change",
async () => {
await screen.orientation.lock(getOppositeOrientation());
},
{ once: true }
);
await screen.orientation.lock(getOppositeOrientation());
}, "Re-locking the screen orientation after a change event fires must not abort");
promise_test(async (t) => {
await test_driver.bless("request full screen");
await document.documentElement.requestFullscreen();
screen.orientation.onchange = async () => {
screen.orientation.onchange = null;
screen.orientation.unlock();
};
await screen.orientation.lock(getOppositeOrientation());
}, "Unlocking the screen orientation after a change event must not abort");
</script>
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