I work at a web development company who sells Joomla websites to 100s of companies worldwide. Joomla allows us to enable SEF URLs by using an .htaccess. This works great on the standard domain during production. However, during development and staging, we would like to provide our clients access to the site to check it out and provide feedback without needing a hosts entry. Can we use SEF URLs when viewing the IP/~username/ URL or is it impossible to use SEF on the test link?