rack users across sites.</span></div></td><td><div class='dataPoint tooltipParent good'
> &nbsp;
<span class="tooltipText">write: async (key) => {
      if (!navigator.serviceWorker) {
        throw new Error("Unsupported");
      }
      let registration = await navigator.serviceWorker.register(
        &#39;serviceWorker.js&#39;);
      console.log(registration);
      await navigator.serviceWorker.ready;
      console.log("service worker ready");
      await sleepMs(100);
      await fetch(`serviceworker