title: Can't render ruby code inside CoffeScript
body: <p>I have a simple CoffeScript file in the <code>/assets/javascript</code> pipeline that is working fine when adding CoffeScript to it. </p>
  
  <p>If I add a simple <code>&lt;%= puts "hello world" %&gt;</code> on top of it I expect it to render "Hello World" on the file, yet I get this error message</p>
  
  <pre><code>throw Error("ExecJS::ProgramError: Error: Parse error on line 1: Unexpected 'COMPARE'\n  (in /Users/user/Sites/app/app/assets/javascripts/application/application.js.coffee)")
  </code></pre>
  
  <p>Any idea what is preventing me to render Ruby and how to solve it?</p>