This bug is in UTF-8. STEPS TO REPRODUCE 1. Go to http://www.bißwanger.com/ 2. View Source EXPECTED RESULTS Source viewed. ACTUAL RESULTS "/!\ could not be found. Please check the name and try again. ((OK))" It works fine if you visit the (apparently canonically equivalent): http://www.bisswanger.com/ ...instead.
<http://www.bißwanger.com/> is *not* a valid URI. -> INVALID
It's perfectly valid IF you read it as UTF-8, not Bugzilla's ISO-8859-1 crap
*** This bug has been marked as a duplicate of 201040 ***