Wikimedia Bugzilla is closed!

We use \b often to match (?:^|$|\s), but it does in fact match "A word boundary matches the position where a word character is not followed or preceeded by another word-character.", where \w is equivalent to [A-Za-z0-9_] [1].

Example:
/\bfoo\b/.test('aaa:foo:bbb');
true

We should go through and fix all improper uses of \b.

[1]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions#special-word-boundary