title: Load timeout for Javascript
body: <p>Consider the following document</p>
  
  <pre><code>&lt;html&gt;
      &lt;body&gt;
          This is some content
          &lt;script type="text/javascript" src="verySlowToRespond.js"&gt;&lt;/script&gt;
          This is some more content
      &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>I'd like first to check my assumption that it is unsafe for the browser to parse beyond the <code>script</code> tag until the script has loaded and executed.</p>
  
  <p>This means that (if my assumption is correct), say <code>verySlowToRespond.js</code> takes 20 seconds to respond, the page DOM cannot be fully assembled until this dependency is resolved.</p>
  
  <p>Supposing <code>verySlowToRespond.js</code> hung about indefinitely? At what point would the browser give up and continue with the parse?</p>