"desc markdown">
          <p>Static factory designed to expose <code>loadstart</code> events to event
handlers that are not necessarily instances of <a href="../../dart-html/HttpRequestEventTarget-class.html">HttpRequestEventTarget</a>.</p>
<p>See <a href="../../dart-html/EventStreamProvider-class.html">EventStreamProvider</a> for usage information.</p>
        </section>
                <section class="summary source-code" id="source">
          <h2><span>Implementation</span></h2>
          <pre class="l