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<script>
addEventListener("pageshow", ({ persisted }) => {
window.blockBFCache = new RTCPeerConnection();
let bc = new BroadcastChannel("bug1850335");
bc.addEventListener("message", ({ data: { cmd, arg } }) => {
bc.close();
if (cmd == "load") {
location = arg;
} else if (cmd == "back") {
history.back();
}
}, { once: true });
bc.postMessage({ persisted });
});
</script>
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