CONSOLE MESSAGE: Did not parse stylesheet at 'http://127.0.0.1:8000/resources/redirect.php?url=http://localhost:8000/security/resources/xorigincss4.html' because non CSS MIME types are not allowed for cross-origin stylesheets.

PASS Testing cross-origin and MIME behavior for CSS. 
PASS xorigincss4.html should not be loaded via @import.