Hey, Internet Browser passes the Acid 3 test!
The user string for the browser is whatever browser you happen to be using at the time. In Firefox 3.5.7 I get 93/100 on acid 3 from the internet browser in the app. It's odd that the address bar in the browser reverts to 127.0.0.1 no matter where you are. Does that happen to anyone else?
Getting the current URL of an embedded frame showing a page on an external domain is (or at least should be) impossible due to restrictions on cross-site scripting. This is the same reason why when you view a page that's trapped in a Diggbar-style frame, if you click a link inside the framed site and later close the "bar", you get redirected back to the initial site. Try it: http://digg.com/u3L7UJ
