title: building a list in "actions on google"
body: <p>I'm doing a project where the Google Assistant generates a list of cards about information on research articles. Each card on the list would have the title and URL to the research article. The Google Assistant would ask what subject you wants to research about and the user would reply with the subject matter in one or two words. I have the following questions </p>
  
  <ol>
  <li><p>I understand that the <code>app.buildList()</code> command requires an <code>alias</code> and <code>key</code> variable. Could I level them as blank or <code>null</code> in my code because I don't think I need them</p></li>
  <li><p>If the user clicks on the URL in a card, will the browser automatically open the link? I remember reading that Google must filter and approve URLs in Google assistant apps </p></li>
  </ol>
  
  <p>Any help would be appreciated </p>