To Repro: 0. Turn on "Always check for world leaks" in Debug menu 1. Navigate to www.google.com 2. Open Web Inspector 3. Close Safari window --> many things reported leaked
These are false positive reports. We need to improve our world leak checks to know about the inspector and not complain. This is also in radar: <rdar://problem/4411863>
These were real leaks after all. Fixed in r21028.