<!DOCTYPE html>
<html class="test-wait">
<meta charset="utf-8">
<script>
  const script = `
    postMessage("hi");
    // This line runs until worker.terminate() happens, which terminates this function too.
    self.reportError(new Int16Array(2147483648))
    // And thus this line runs after the termination.
    navigator.locks.request("weblock_0", () => {});
  `;
  const worker = new Worker(URL.createObjectURL(new Blob([script])));
  worker.onmessage = () => {
    worker.terminate();

    // We want to wait for the full termination but there is no API for that
    // So, just wait for a random time
    setTimeout(() => document.documentElement.classList.remove("test-wait"), 100);
  }
</script>
