title: HTML Validation Error - No User-Agent header found
body: <p>When I try to validate html syntax in Aptana I get the error "No User-Agent header found".  I have searched and found that this has been logged as a bug (<a href="https://jira.appcelerator.org/browse/APSTUD-7773" rel="nofollow">https://jira.appcelerator.org/browse/APSTUD-7773</a>) but I am wondering if anyone has a workaround?  </p>
  
  <p>I am running Aptana Studio 3, build: 3.4.2.201308081805 on a OSX platform.</p>