sents a website, typically shown in browser tab and bookmarks menu. If the favicon cache is not partitioned, it can be used to track users across websites.</span></div></td><td><div class='dataPoint tooltipParent bad'
> &nbsp;
<span class="tooltipText">write: (key) =&gt; key

read: async (key) =&gt; {
      // Wait for the favicon to load (defined in supercookies.html)
      await sleepMs(500);
      let response = await fetch(
        testURI(&quot;ctr&quot;, &quot;favicon&quot;, key), {&quot;cache&quot;: 