angular.copy does not support circular reference

[langdonx]

As titled and demonstrated here:

http://plnkr.co/edit/dRYPgyi9ITdaEFABJFBB?p=preview

JSON.stringify/angular.copy both fail on circular references, while other implementations of clone do not.

Also, is there some reason shallowCopy isn't exposed via publishExternalAPI like copy is?

[tadchristiansen]

I am having the same issue, how did you end up dealing with this?

[chrisramakers]

It would be nice if this could be solved, bumped into this the third time in a few months.

[btford]

Angular relies on angular.copy to behave in this way.

other implementations of clone do not

clone is not a standardized function. If you want an implementation that behaves in a certain way, it's best to include your own.

[tkrotoff]

Before to close this issue, it would be best to improve the documentation.
I've spent a lot of time because of this and I believe others will too.

[btford]

@tkrotoff PR welcome. :)

[petebacondarwin]

I believe this is fixed by #7618