title: Setting environment variable for CHROME_BIN does not work
body: <p>I'm trying to use Karma for testing my js scripts. In the doc it says I should set the environment variable for <code>CHROME_BIN</code>:</p>
  
  <p>I've set it to</p>
  
  <blockquote>
    <p>%programfiles(x86)%"\Google\Chrome\Application\Chrome.exe</p>
  </blockquote>
  
  <p>but when I type <code>%CHROME_BIN%</code> in DOS, it fails as it's truncated to <code>C:\Program</code> of the space in <code>Program Files</code>.</p>
  
  <p>What can I do to work around with this problem?</p>