Different results for FF and Chrome vs IE9 in web app using js api

Discussion created by CarolynWhite on Oct 3, 2012
Latest reply on Oct 3, 2012 by odoe
If you view this site
in FF or Chrome the map frame shows the service.

But if you view the site in IE9, the map service does not display.

Visual Studio does show warnings in the homepage code - the DTD is Transitional, the code uses Frameset and an error is flagged in IE9 but not in FF.

Can someone explain what the problem is?