URL parser does not detect 4 letter TLDs

The URL parsing in chat dislikes Top Level Domains with more than 3 characters (eg a .com works fine, but a .info does not), and does not permit clicking on the link in game to take the user to a web address.

The problem is easily reproduced, after trying the domains in the chat box:

jameo.com and other variations (eg prepending http://) functions correctly.

jameo.info and other variations do not.