title: How to disable google cloud storage bucket list from acl control?
body: <p>We're using google cloud storage as our CDN.</p>
  
  <p>However, any visitors can list all files by typing: <a href="http://ourcdn.storage.googleapis.com/" rel="noreferrer">http://ourcdn.storage.googleapis.com/</a></p>
  
  <p>How to disable it while all the files under the bucket is still public readable by default?  </p>
  
  <p>We previously set the acl using </p>
  
  <pre><code>gsutil defacl ch -g AllUsers:READ 
  </code></pre>