is fetched. In case of failure, we fall back to the offline HTML page, cached during the installation step.</p>
<div class="sourceCode" id="cb929"><pre class="sourceCode js"><code class="sourceCode javascript"><span id="cb929-1"><a href="mobile-pwa.html#cb929-1" aria-hidden="true" tabindex="-1"></a><span class="co">// Navigation request logic</span></span>
<span id="cb929-2"><a href="mobile-pwa.html#cb929-2" aria-hidden="true" tabindex="-1"></a><span class="bu">event</span><span class="op">.</span><span cla