title: Turbo Drive not intercepting links (but turbo:load event fires)
body: <p>I'm experimenting with adding Turbo to a Rails 6.1 app.</p>
  <p>It seems to be loading (see &quot;What I've tried&quot;), but when clicking around the clicks does not seem to be intercepted. I'm still getting full page reloads.</p>
  <p>Can anyone help me spot what is missing here?</p>
  <h1>What I've tried</h1>
  <ol>
  <li>Added an event handler with console.log() output that shows that the <code>turbo:load</code> is indeed getting triggered</li>
  <li>Ensured <code>Turbo.session.drive = true</code> in <code>application.js</code></li>
  <li>Even tried adding <code>data-turbo=&quot;true&quot;</code> to a <code>&lt;main&gt;</code> tag, but that seems to have made no difference. Perhaps not too surprising, given pt. 2.</li>
  <li>Firefox and Chrome</li>
  </ol>
  <h1>Setup</h1>
  <pre class="lang-js prettyprint-override"><code>// app/javascript/application.js
  
  import { Turbo } from &quot;@hotwired/turbo-rails&quot;
  Turbo.session.drive = true
  </code></pre>
  <pre class="lang-rb prettyprint-override"><code># config/importmap.rb
  
  pin 'application', preload: true
  pin '@hotwired/turbo-rails', to: 'turbo.js'
  </code></pre>
  <pre class="lang-js prettyprint-override"><code>// Debugging statement 
  
  document.addEventListener('turbo:load', function() {
    console.log('turbo:load');
  })
  </code></pre>