How does the browser know what to do with a realm that is an XMPP URI? Is there a browser plugin that passes that off to a Jabber client so it can send the token request to the agent?
If you are writing a browser plugin surely its better to use a custom auth scheme so its not quite so hacky, also we can still have this Basic fallback method for users without the plugin as servers can offer multiple authentication schemes to a client, i.e. our custom scheme and also basic as a fallback.
Richard
