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<script>
addEventListener("load", () => {
document.getElementById("input1").value = "";
});
addEventListener("pageshow", ({ persisted }) => {
let bc = new BroadcastChannel("bug1850335");
bc.addEventListener("message", ({ data: { cmd, arg } }) => {
if (cmd == "setValue") {
document.getElementById("input1").value = arg;
bc.postMessage({ value: document.getElementById("input1").value });
} else if (cmd == "load") {
bc.close();
location = arg;
} else if (cmd == "close") {
close();
}
});
bc.postMessage({ persisted, value: document.getElementById("input1").value });
});
</script>
<input type="text" id="input1"></input>