title: Detect if user has muted tab?
body: <p>Chrome allows users to <a href="http://www.pcworld.com/article/2087960/google-chromes-latest-update-officially-lets-you-mute-noisy-tabs.html" rel="noreferrer">mute tabs</a>, simply by right-clicking them and hitting Mute Tab. What I'm wondering is if there's a way to detect when a user has muted the tab.</p>
  
  <p>To clarify, I'm wondering if there's a way for a website to detect when I've muted their tab.</p>