f="dart-html/ExtendableMessageEvent-class.html#instance-properties">Properties</a>
        </li>
        <li><a href="dart-html/ExtendableMessageEvent/data.html">data</a></li>
        <li><a href="dart-html/ExtendableMessageEvent/lastEventId.html">lastEventId</a></li>
        <li><a href="dart-html/ExtendableMessageEvent/origin.html">origin</a></li>
        <li><a href="dart-html/ExtendableMessageEvent/ports.html">ports</a></li>
        <li><a href="dart-html/ExtendableMessageEvent/source.html">source</a></