Okta - passing okta profile parameters to a URL from the signin widget

I am using the Okta signin widget to validate users for a program I wrote and would like to pass in some of the Okta profile data to my application thru a URL. When I look at the object that Okta creates (res), it only seems to expose a few of the profile attributes such as firstName, lastName, locale, timeZone and login. The javascripts alerts show as undefined for all other user profile attributes. Is there any way to access the additional profile attributes from an okta profile within this script or is there another way that this can be done thru the Okta portal itself.