title: CORS not working when page is compressed/cached
body: <p>At the moment I have 2 sites: A - with content and CORS header enabled, B - in which I want to embed content using AJAX Include Script.</p>
  
  <p>Everything works great when page is not compressed. When W3 Total Cache is enabled, I get XMLHttpRequest Exception 101.</p>
  
  <p><strong>Weird behavior:</strong> 
  When I navigate to page where content should be and then purge A site's page cache and refresh B site, everything loads up fine. When I clear browser cache and refresh - XMLHttpRequest Exception 101 again. It's the same for Chrome, Firefox and Safari(both, desktop and mobile).</p>
  
  <p>What's going wrong when compression is enabled?  </p>
  
  <p>p.s. I've tried setting up CORS by PHP and Apache. Makes no difference.</p>