Open CRM in a jquery UI Dialog

Is there a trick to getting a Microsoft Dynamic CRM page to load in a jquery UI dialog, it appears that AD authentication does not happen and a 401 is returned. Opening the site via window.open does authenticat开发者_Go百科e.

$("#dialog").load(href).dialog({ modal: true }); 

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The only way it would authenticate is if we used an iframe, and we were forced to go that route.