href="mobile-pwa.html#cb928-1" aria-hidden="true" tabindex="-1"></a><span class="co">// Fix service-worker bug</span></span>
<span id="cb928-2"><a href="mobile-pwa.html#cb928-2" aria-hidden="true" tabindex="-1"></a><span class="cf">if</span> (<span class="bu">event</span><span class="op">.</span><span class="at">request</span><span class="op">.</span><span class="at">cache</span> <span class="op">===</span> <span class="st">'only-if-cached'</span>) <span class="cf">return</span><span class="op">;</span></sp