iOS Authentication Missing Cookie

I am trying to get authentication working on iOS and I can pull up a webview and have it follow the standard login flow from bungie to psn and back to bungie but when i grab the cookies from the final authentication i get : bunglefrogblastventcore bunglecounts bunglesony bungleme bungleatk bungleloc but i cant seem to figure out why im not getting the 'bungled' cookie which i would need for api requests. Can anyone point me in the right direction as to what i could be doing wrong here?