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<!doctype html>
<head>
<script>
onload = () => {
opener.postMessage("load", "*");
};
onmessage = () => {
runTest();
}
async function runTest() {
await navigation.navigate("#1").finished;
navigation.onnavigate = async () => {
await navigation.back().finished.catch(() => {
opener.postMessage("done", "*");
})
}
history.back();
}
</script>
</head>