Changes

One interesting side efect is that after this change, you can select a link to a .webapp file in a Web Page and you get it run by webrunner Prism - in IE this runs anywhere, but this won't work in Firefox unless the webapp is being issued with an appropriate MIME type on the server: application/x-webrunner works (see [http://blondechris.com/www/gmail.webapp here] for an example).