Currently the link regex only matches links that begin with "www" or "http://" ("or https://"). It may be warranted to consider other links. Possible approaches would be to look for other subdomains, look for other parts of a URI (e.g., a port), or whitelisting gTLDs. It would be useful to see what expectations are set by Twitter's, Facebook's and others' behaviors.
Currently the link regex only matches links that begin with "www" or "http://" ("or https://"). It may be warranted to consider other links. Possible approaches would be to look for other subdomains, look for other parts of a URI (e.g., a port), or whitelisting gTLDs. It would be useful to see what expectations are set by Twitter's, Facebook's and others' behaviors.