title: d3.html not working with d3.v4
body: <p>In d3 version 3, I had this code, which worked great:</p>
  
  <pre><code>d3.html("http://google.com",function(frag){
      console.log(frag);
  });
  </code></pre>
  
  <p>That code doesn't work in version 4. So looking at the <a href="https://github.com/d3/d3-3.x-api-reference/blob/master/Requests.md#d3_html" rel="nofollow">API</a> and <a href="https://github.com/d3/d3/blob/master/CHANGES.md" rel="nofollow">change log</a>, I thought perhaps this:</p>
  
  <pre><code>d3.html("http://www.google.com").get(function(error,frag){ console.log(frag); });
  </code></pre>
  
  <p>But this doesn't work either. Does anyone have a working example of d3.v4 for d3.html?</p>
  
  <p>Thanks</p>