Developing and Testing a Facebook application

The way I and my partner did it was we each made our own private Facebook applications, that pointed to our IP address where we worked on it. Since we worked in the same place, we each picked a different port, and had our router forward that port to our local IP address. It was kinda slow to refresh a page, but it worked very nicely.

Try updating your hosts file (for windows users @ c:\windows\System32\Drivers\etc\hosts) with an entry that will route all requests from your live domain back to your machine.

So 127.0.0.1 mywebappthatusesfacebook.com.

Then make sure that your app is running at the root of your webserver. @ http://localhost/ Then goto mywebappthatusesfacebook.com in your browser and it should redirect right back to your local machine. Facebook won't know the difference. Hope this helps

You'll have to add both trunk and test versions as different applications and test them using test accounts. You may also use a single application and switch its target URL between cycles.