.)</p></div></div><div class="field "><a name="installing"></a><h3 class="anchor"><code><span class="label">read only</span><a href="#installing"><span class="identifier">installing</span></a>:<a class="type" title="js.html.ServiceWorker - The ServiceWorker interface of the ServiceWorker API provides a reference to a service worker." href="../../js/html/ServiceWorker.html">ServiceWorker</a></code></h3><div class="doc"><p>Returns a service worker whose state is <code>installing</code>. This is initially set 