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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - visibilitychange:hidden doesn't fire during page navigations"
   href="https://bugs.webkit.org/show_bug.cgi?id=151234#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - visibilitychange:hidden doesn't fire during page navigations"
   href="https://bugs.webkit.org/show_bug.cgi?id=151234">bug 151234</a>
              from <span class="vcard"><a class="email" href="mailto:igrigorik&#64;gmail.com" title="Ilya Grigorik &lt;igrigorik&#64;gmail.com&gt;"> <span class="fn">Ilya Grigorik</span></a>
</span></b>
        <pre>Related issue <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - pagehide doesn't fire when tab is closed"
   href="show_bug.cgi?id=151610">https://bugs.webkit.org/show_bug.cgi?id=151610</a>, and some additional context: <a href="https://www.igvita.com/2015/11/20/dont-lose-user-and-app-state-use-page-visibility/">https://www.igvita.com/2015/11/20/dont-lose-user-and-app-state-use-page-visibility/</a></pre>
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