Is it possible to restrict a domain to only allow visitors using a specific browser?
I'm building an app and it's only been tested in Chrome so far so I only want to allow Chrome users during Beta testing. Basically, I want to white-list browsers as I go through testing. Any suggestions on the approach I should would be greatly appreciated.
Yes you can.
The browser that is accessing the page is in the _SERVER array.
If you find that the accessing browser is not Chrome, then just send a 404 header.