/div>
    Stream of <code class="prettyprint lang-dart">progress</code> events handled by this <code class="prettyprint lang-dart">HttpRequestEventTarget</code>.
            </dd>
            <dt id="onReadyStateChange" class="property">
                <span class="top-level-variable-type">Stream&lt;<a href="dart-html/ProgressEvent-class.html">ProgressEvent</a>&gt;</span>
                <a href="polymer_app_layout/HttpRequest/onReadyStateChange.html">onReadyStateChange</a>
            </dt>
            <d