title: Chrome slows down javascript if page is not active
body: <p>If I write a javascript code what uses setTimeout/setInterval, time will not be valid on Chrome if the related page isn't active.
  To demonstrate, just simply create an html file with a js code like this:</p>
  
  <pre><code>&lt;script&gt;
      var title = 1;
      setInterval(function(){document.title = "X:"+title; title+=1}, 250);
  &lt;/script&gt;
  </code></pre>
  
  <p>Open page several time, and you'll see that if a page is not active, the title will increment only in abount 2 sec, instead of 250ms. It is a very critical issue in my development.
  Does anyone know how to evade it? A simple Chrome options could be enought too if there is.</p>
  
  <p>Just to mark it as not duplicate: It is not for animations, it is for background workings. The provided example is very accurate! I need to run script in very accurately and do operations fastly in backgrounded tabs. I know, 99,9999% of people does not need it...</p>