title: Deleting Cookies from a Controller
body: <p>I set some cookie values in my form using jQuery. I can read them just fine in my Rails controller via the <code>cookies</code> method. When I call <code>cookies.delete(:my_key)</code>, they appear to be gone when I call <code>cookies</code> again. But when I reload the page, the cookies are back again.</p>
  
  <p>Is there a way to delete the cookies for good from inside my controller?</p>
  
  <p>EDIT</p>
  
  <p>This is very strange since I'm looking at the response headers and they seem to be deleting the cookie. Maybe it's because it is a 302 request?</p>
  
  <pre><code>Set-Cookie: my_key=; path=/; expires=Thu, 01-Jan-1970 00:00:00 GMT
  </code></pre>