This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.
See the page. It's a test for this error. http://gnosislivre.org/~aurium/test_validator.html #something{ border: 1px solid transparent; } give an error in a check by referer but not by the URI checker.
The "check" servlet has been redone and now works as it should (with proper use of HTTP headers)