Converting circular structure to JSON in Angularjs

I am using AngualrJS and via service call getting a response and it returns a JSON object like
response={TypeName:sample,MessageType:0,Message1: null,Message2:null,Foo:0}.

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When I try to debug in angularjs  in  the code
var a= angular.fromJson(angular.toJson(response)) 

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 //Getting error "TypeError: Converting circular structure to JSON"
 How can I fix this issue .Is this problem with API data or am i doing anything wrong in angularjs
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Scott Fell, EE MVEDeveloper & EE ModeratorCommented:
Why do you have toJson nested inside fromJason?

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