title: chrome.cookies.set doesn't even run
body: <p>The following code doesn't work for some reason:</p>
  
  <p>Background.js </p>
  
  <pre><code>alert("1");
  chrome.cookies.set({ url: "https://mywebsite.com", name: "SuperDuperTest" });
  alert("2");
  </code></pre>
  
  <p>manifest.json</p>
  
  <blockquote>
    <p>"permissions": [ "notifications", "<a href="https://mywebsite.com" rel="nofollow noreferrer">https://mywebsite.com</a>",
    "cookies", "http://* /* ", "https://* / * "  ],</p>
  </blockquote>
  
  <p>Only alert("1"); ever fires. Alert 2 never does, why isn't my chrome cookies firing at all?</p>