Navigating to http://blog.phacility.com/post/728/hosted_phabricator_now_in_open_beta/
Then clicking Previous Post throws the below exception.
Unhandled Exception ("Exception")
This Phabricator install is configured as "https://secure.phabricator.com/", but you are using the domain name "blog.phacility.com" to access a page which is trying to set a cookie.
Acccess Phabricator on the configured primary domain or a configured alternate domain. Phabricator will not set cookies on other domains for security reasons.
The previous and next links seem to point to .../phame/post/...