oned.</span></div></td><td><div class='dataPoint tooltipParent na'
> &ndash;
<span class="tooltipText">write: async () => {
      // Clear Alt-Svc caching first.
      let responseText = "";
      for (let i = 0; i < 10 && responseText !== "h2"; ++i) {
        responseText = await fetchText("https://h3.arthuredelstein.net:4433/clear");
        console.log("clear", responseText, i);
        await sleepMs(10);
      }
      if (responseText !== "h2") {
        // Clearing failed.
        throw new Error("Unsu