s accessible to multiple websites, it can be abused to track users.</span></div></td><td><div class='dataPoint tooltipParent good'
> &nbsp;
<span class="tooltipText">write: async (key) => {
      try {
        let cache = await caches.open("supercookies");
        cache.addAll([`test.css?key=${key}`]);
      } catch (e) {
        throw new Error("Unsupported");
      }
    }

read: async () => {
      let cache = await caches.open("supercookies");
      let cacheKeys = await cache.keys();
      let url = ca