JavaScript - http://my.opera.com/desktopteam/blog/2007/10/18/a-snapshot-a-day-keeps-the-bugs-away?cid=3850682&startidx=250
Event thread: DOMContentLoaded
Error:
name: TypeError
message: Statement on line 252: Type mismatch (usually non-object value supplied where object required)
Backtrace:
  Line 252 of User JS script : In function getFriendsList
    function getFriendsList() { var friends = weeklies.cookies['ujs:friends']; if (friends) friends = friends.split('\t'); else { friends = getPeopleFromXML('http://my.opera.com/' + weeklies.getUsername() + '/xml/foaf/'); weeklies.cookies.set('ujs:friends', friends.join('\t'), 3, '/desktopteam/blog/'); } return friends; }
  Line 183 of User JS script : In function doHighlightPosts
          var friends = getFriendsList();
  ...